/* ================================================================
   Variables
================================================================ */
:root {
    --primary:        #4f9eff;
    --primary-dark:   #2d7dd2;
    --secondary:      #8b5cf6;
    --accent:         #00d4aa;

    --bg:             #060c1a;
    --bg-mid:         #0a1225;
    --bg-card:        rgba(13, 24, 48, 0.85);
    --bg-card-solid:  #0d1830;

    --border:         rgba(79, 158, 255, 0.12);
    --border-hover:   rgba(79, 158, 255, 0.5);

    --text:           #e8eef8;
    --text-secondary: #8899b5;
    --text-muted:     #4a5a75;

    --gradient:       linear-gradient(135deg, var(--primary), var(--secondary));
    --gradient-text:  linear-gradient(135deg, var(--primary) 0%, var(--secondary) 60%, var(--accent) 100%);

    --radius-sm:      8px;
    --radius:         14px;
    --radius-lg:      20px;

    --shadow:         0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow:    0 0 40px rgba(79, 158, 255, 0.2);

    --transition:     all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --nav-height:     70px;
}

/* ================================================================
   Reset & Base
================================================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    line-height: 1.65;
    color: var(--text);
    background-color: var(--bg);
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a  { text-decoration: none; }
ul { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

section { padding: 100px 0; }

/* ================================================================
   Scroll Progress Bar
================================================================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: var(--gradient);
    z-index: 9999;
    transition: width 0.1s linear;
    box-shadow: 0 0 8px rgba(79, 158, 255, 0.6);
}

/* ================================================================
   Navigation
================================================================ */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    padding: 0;
}

.navbar.scrolled {
    background: rgba(6, 12, 26, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-height);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    transition: var(--transition);
}

.logo:hover { opacity: 0.85; }

.logo-image {
    height: 38px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 6px;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text);
    background: rgba(79, 158, 255, 0.08);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 60%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ================================================================
   Hero
================================================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: var(--nav-height);
}

/* Floating orbs */
.hero-orbs {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.35;
    animation: orbFloat 8s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #1d4ed8, transparent 70%);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #7c3aed, transparent 70%);
    bottom: -100px;
    left: -50px;
    animation-delay: 3s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #00d4aa, transparent 70%);
    top: 40%;
    left: 30%;
    opacity: 0.15;
    animation-delay: 6s;
}

/* Subtle grid overlay */
.hero-grid-overlay {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-image:
        linear-gradient(rgba(79, 158, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79, 158, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 100%);
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

/* Hero badge */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(79, 158, 255, 0.08);
    border: 1px solid rgba(79, 158, 255, 0.2);
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 1.5rem;
    letter-spacing: 0.3px;
    animation: fadeInDown 0.8s ease both;
}

.badge-pulse {
    width: 7px;
    height: 7px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 1.8s ease-in-out infinite;
    flex-shrink: 0;
}

.hero-title {
    font-size: clamp(2.8rem, 5vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -2px;
    color: var(--text);
    margin-bottom: 1.2rem;
    animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-title-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.75rem;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s both;
}

/* Hero image */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease 0.3s both;
}

.hero-phone-wrapper {
    position: relative;
    display: inline-block;
}

.hero-phone-glow {
    position: absolute;
    inset: -20px;
    background: radial-gradient(circle, rgba(79, 158, 255, 0.25) 0%, transparent 70%);
    border-radius: 50%;
    animation: glowPulse 3s ease-in-out infinite;
}

.hero-phone-image {
    position: relative;
    max-width: 280px;
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(79, 158, 255, 0.15);
    animation: float 5s ease-in-out infinite;
    z-index: 1;
}

/* Scroll hint */
.hero-scroll-hint {
    position: absolute;
    bottom: 36px;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    animation: fadeInUp 1s ease 1s both;
    z-index: 1;
}

.scroll-arrow {
    animation: bounce 2s ease-in-out infinite;
    font-size: 0.9rem;
}

/* ================================================================
   Buttons
================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 4px 20px rgba(79, 158, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(79, 158, 255, 0.5);
}

.btn-secondary {
    background: rgba(79, 158, 255, 0.08);
    color: var(--primary);
    border: 1px solid rgba(79, 158, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(79, 158, 255, 0.15);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.btn-full { width: 100%; justify-content: center; }

/* ================================================================
   Section Header
================================================================ */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--primary);
    background: rgba(79, 158, 255, 0.08);
    border: 1px solid rgba(79, 158, 255, 0.2);
    padding: 4px 14px;
    border-radius: 100px;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    font-weight: 800;
    color: var(--text);
    margin-bottom: 0.75rem;
    letter-spacing: -1px;
    line-height: 1.2;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

.demo .section-header p {
    max-width: none;
    white-space: nowrap;
}

/* ================================================================
   Partners Strip
================================================================ */
.partners-strip {
    background: var(--bg);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
}

.partners-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 28px;
    flex-wrap: wrap;
}

.partners-divider {
    width: 1px;
    height: 36px;
    background: var(--border);
    flex-shrink: 0;
}

.partner-logo-link {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.8;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.partner-logo-link:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.partner-logo {
    display: block;
    object-fit: contain;
}

/* Circle-clip the UoB seal — removes white corners, shows the round crest */
.partner-logo--uob {
    height: 64px;
    width: 64px;
    border-radius: 50%;
    object-fit: cover;
}

/* invert(1) turns white→black (vanishes on dark bg); hue-rotate(180deg)
   brings the orange arrow back to orange while keeping text white */
.partner-logo--aws {
    height: 44px;
    width: auto;
    filter: invert(1) hue-rotate(180deg);
}

/* ================================================================
   Demo Section
================================================================ */
.demo {
    background: var(--bg-mid);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow), var(--shadow-glow);
    border: 1px solid var(--border);
}

.video-container iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    display: block;
    border: none;
}

/* ================================================================
   About Section
================================================================ */
.about {
    background: var(--bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-block {
    display: flex;
    gap: 20px;
    margin-bottom: 2rem;
}

.about-block:last-child { margin-bottom: 0; }

.about-block-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    background: rgba(79, 158, 255, 0.1);
    border: 1px solid rgba(79, 158, 255, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1rem;
    margin-top: 4px;
}

.about-block h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.about-block p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* Stats */
.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-content: start;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    cursor: default;
    backdrop-filter: blur(10px);
}

.stat-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
}

.stat-icon {
    width: 52px;
    height: 52px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.3rem;
    color: #fff;
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    letter-spacing: -2px;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.4rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ================================================================
   Features Section
================================================================ */
.features {
    background: var(--bg-mid);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

/* Infinite marquee */
.features-marquee-wrapper {
    position: relative;
    overflow: hidden;
    padding: 8px 0;
}

/* Soft fade edges */
.features-marquee-wrapper::before,
.features-marquee-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 160px;
    z-index: 2;
    pointer-events: none;
}

.features-marquee-wrapper::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-mid) 0%, transparent 100%);
}

.features-marquee-wrapper::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-mid) 0%, transparent 100%);
}

.features-marquee-track {
    display: flex;
    width: max-content;
}

.marquee-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(79, 158, 255, 0.3);
    background: rgba(6, 12, 26, 0.85);
    color: var(--primary);
    font-size: 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    backdrop-filter: blur(8px);
}

.marquee-arrow:hover {
    background: rgba(79, 158, 255, 0.15);
    border-color: var(--primary);
    transform: translateY(-50%) scale(1.1);
}

.marquee-prev { left: 16px; }
.marquee-next { right: 16px; }

.marquee-group {
    display: flex;
    gap: 20px;
    padding-right: 20px;
    flex-shrink: 0;
}


/* Feature cards */
.feature-card {
    width: 290px;
    flex-shrink: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient);
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 52px;
    height: 52px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    color: #fff;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(-5deg);
}

.feature-card h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.6rem;
}

.feature-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Flutter SVG icon inside tech-item */
.flutter-icon {
    width: 1.2rem;
    height: 1.2rem;
    flex-shrink: 0;
    color: var(--primary);
}

/* ================================================================
   Scenarios Section
================================================================ */
.scenarios {
    background: var(--bg);
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.scenario-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.scenario-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.35s ease;
    z-index: 0;
}

.scenario-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
}

.scenario-card > * { position: relative; z-index: 1; }

.scenario-number {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: -3px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.35;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.scenario-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.scenario-xp {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #fbbf24;
    font-size: 0.85rem;
    font-weight: 600;
    background: rgba(251, 191, 36, 0.1);
    padding: 3px 10px;
    border-radius: 100px;
    margin-bottom: 1rem;
}

.scenario-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.scenario-features {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.scenario-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.scenario-features i {
    color: var(--accent);
    font-size: 0.75rem;
    width: 14px;
}

/* Center 5th card */
.scenario-center {
    grid-column: 1 / -1;
    max-width: 580px;
    margin: 0 auto;
    width: 100%;
}

/* ================================================================
   K9 Roster — 3D Dog Showcase
================================================================ */
.dogs-showcase {
    background: var(--bg);
    overflow: hidden;
}

.dogs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.dog-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.dog-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-5px);
}

/* 3D Viewer canvas area */
.dog-viewer {
    position: relative;
    height: 300px;
    background: radial-gradient(ellipse at 50% 60%, rgba(13, 24, 48, 0.95) 0%, rgba(6, 12, 26, 0.98) 100%);
    cursor: grab;
    overflow: hidden;
}

.dog-viewer:active { cursor: grabbing; }

/* Subtle tech grid behind the transparent WebGL canvas */
.dog-viewer::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(79, 158, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79, 158, 255, 0.035) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
}

.dog-viewer canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

.dog-loader {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    pointer-events: none;
}

.dog-loader-spinner {
    width: 30px;
    height: 30px;
    border: 2px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: dogSpin 0.75s linear infinite;
}

.dog-loader-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.04em;
}

@keyframes dogSpin { to { transform: rotate(360deg); } }

/* Info panel below viewer */
.dog-info {
    padding: 22px 26px 26px;
}

.dog-availability {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    padding: 3px 11px;
    border-radius: 100px;
    margin-bottom: 10px;
}

.dog-availability.available {
    color: #4ade80;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.25);
}

.dog-availability.locked {
    color: #fb923c;
    background: rgba(251, 146, 60, 0.1);
    border: 1px solid rgba(251, 146, 60, 0.25);
}

.dog-availability.locked-hard {
    color: #e879f9;
    background: rgba(232, 121, 249, 0.1);
    border: 1px solid rgba(232, 121, 249, 0.25);
}

.dog-stars {
    font-size: 0.8rem;
    color: #fbbf24;
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.dog-stars .far { color: var(--border); }

.dog-info h3 {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 7px;
    letter-spacing: -0.5px;
}

.dog-description {
    font-size: 0.86rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 18px;
}

/* Stat bars */
.dog-stats {
    display: flex;
    flex-direction: column;
    gap: 9px;
    margin-bottom: 14px;
}

.dog-stat-row {
    display: grid;
    grid-template-columns: 76px 1fr 28px;
    align-items: center;
    gap: 10px;
}

.dog-stat-row > span:first-child {
    font-size: 0.76rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.dog-stat-bar {
    height: 5px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
}

.dog-stat-fill {
    height: 100%;
    border-radius: 3px;
    width: 0;
    transition: width 1.3s cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: var(--bar-delay, 0.3s);
}

.dog-card:nth-child(1) .dog-stat-fill {
    background: linear-gradient(90deg, var(--primary), #60a5fa);
}

.dog-card:nth-child(2) .dog-stat-fill {
    background: linear-gradient(90deg, var(--secondary), #c084fc);
}

.dog-card:nth-child(3) .dog-stat-fill {
    background: linear-gradient(90deg, #f59e0b, #fcd34d);
}

.dog-card.visible .dog-stat-fill { width: var(--w); }

.dog-stat-val {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-muted);
    text-align: right;
}

.dog-drag-hint {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.74rem;
    color: var(--text-muted);
}

@media (max-width: 1024px) {
    .dogs-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
    .dogs-grid { grid-template-columns: 1fr; }
    .dog-viewer { height: 280px; }
}

/* ================================================================
   K9 Roster Section
================================================================ */
.roster {
    background: var(--bg-mid);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.roster-grid {
    display: grid;
    grid-template-columns: 1fr 1.15fr 1fr;
    gap: 24px;
    align-items: start;
}

/* Override base dog-card for roster — reset viewer padding */
.roster .dog-card {
    padding: 0;
    display: flex;
    flex-direction: column;
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.roster .dog-card--featured {
    border-color: rgba(139, 92, 246, 0.35);
    box-shadow: 0 0 40px rgba(139, 92, 246, 0.15);
}

/* Subtle gradient wash behind each card */
.dog-card-bg {
    position: absolute;
    inset: 0;
    opacity: 0.06;
    pointer-events: none;
    z-index: 0;
}
.dog-card-bg--easy   { background: radial-gradient(ellipse at 50% 0%, #00d4aa, transparent 70%); }
.dog-card-bg--medium { background: radial-gradient(ellipse at 50% 0%, #8b5cf6, transparent 70%); }
.dog-card-bg--hard   { background: radial-gradient(ellipse at 50% 0%, #f87171, transparent 70%); }

/* Featured badge */
.dog-featured-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #fff;
    background: var(--gradient);
    padding: 4px 12px;
    border-radius: 100px;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Tier badge */
.dog-tier-badge {
    position: absolute;
    top: 16px;
    left: 20px;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 3px 11px;
    border-radius: 100px;
    z-index: 2;
}
.tier-easy   { color: var(--accent);  background: rgba(0, 212, 170, 0.12); border: 1px solid rgba(0, 212, 170, 0.25); }
.tier-medium { color: var(--secondary); background: rgba(139, 92, 246, 0.12); border: 1px solid rgba(139, 92, 246, 0.25); }
.tier-hard   { color: #f87171;        background: rgba(248, 113, 113, 0.12); border: 1px solid rgba(248, 113, 113, 0.25); }

/* Dog avatar icon */
.dog-avatar {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px 24px;
    font-size: 5rem;
}
.dog-avatar--easy   { color: var(--accent); }
.dog-avatar--medium { color: var(--secondary); }
.dog-avatar--hard   { color: #f87171; }

.dog-avatar i {
    filter: drop-shadow(0 8px 24px currentColor);
    opacity: 0.9;
    transition: var(--transition);
}

.roster .dog-card:hover .dog-avatar i {
    transform: scale(1.08) rotate(-6deg);
}

/* Dog info block */
.roster .dog-info {
    position: relative;
    z-index: 1;
    padding: 0 24px 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.dog-name {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.5px;
    margin: 0;
}

.dog-breed {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
    margin: -4px 0 0;
}

.dog-xp {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: #fbbf24;
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.2);
    padding: 4px 12px;
    border-radius: 100px;
    align-self: flex-start;
}

.dog-desc {
    font-size: 0.87rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.dog-traits {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.trait {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: rgba(79, 158, 255, 0.06);
    border: 1px solid var(--border);
    padding: 3px 10px;
    border-radius: 6px;
}

/* Difficulty bars */
.dog-difficulty {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 24px 20px;
    border-top: 1px solid var(--border);
}

.diff-label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    white-space: nowrap;
}

.diff-bars {
    display: flex;
    gap: 5px;
    flex: 1;
}

.diff-bar {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    transition: background 0.4s ease;
}

.tier-easy   ~ .dog-difficulty .diff-bar--active,
.dog-card:has(.tier-easy) .diff-bar--active   { background: var(--accent); }
.dog-card:has(.tier-medium) .diff-bar--active { background: var(--secondary); }
.dog-card:has(.tier-hard) .diff-bar--active   { background: #f87171; }

/* Fallback for browsers without :has() */
.dog-card:nth-child(1) .diff-bar--active { background: var(--accent); }
.dog-card:nth-child(2) .diff-bar--active { background: var(--secondary); }
.dog-card:nth-child(3) .diff-bar--active { background: #f87171; }

/* Responsive */
@media (max-width: 900px) {
    .roster-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}

/* ================================================================
   Technology Stack
================================================================ */
.technology {
    background: var(--bg-mid);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.tech-category {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.tech-category:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.tech-category-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.tech-category-header i {
    color: var(--primary);
    font-size: 1rem;
}

.tech-category-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
}

.tech-items {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tech-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    background: rgba(79, 158, 255, 0.04);
    border: 1px solid transparent;
    transition: var(--transition);
}

.tech-item:hover {
    background: rgba(79, 158, 255, 0.09);
    border-color: var(--border);
    transform: translateX(4px);
}

.tech-item i {
    font-size: 1.2rem;
    color: var(--primary);
    width: 20px;
    text-align: center;
}

.tech-item span {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* ================================================================
   Team Section
================================================================ */
.team {
    background: var(--bg);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.team-member {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.member-major {
    position: absolute;
    top: 12px;
    left: 12px;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    padding: 3px 9px;
    border-radius: 6px;
    text-transform: uppercase;
}

.major-se {
    background: rgba(168, 85, 247, 0.15);
    color: #c084fc;
    border: 1px solid rgba(168, 85, 247, 0.3);
}

.major-cs {
    background: rgba(34, 197, 94, 0.12);
    color: #4ade80;
    border: 1px solid rgba(34, 197, 94, 0.25);
}

.major-compsci {
    background: rgba(251, 146, 60, 0.12);
    color: #fb923c;
    border: 1px solid rgba(251, 146, 60, 0.25);
}

.team-member:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
}

.member-image {
    width: 120px;
    height: 120px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.2rem;
    font-size: 1.8rem;
    color: #fff;
    transition: var(--transition);
    overflow: hidden;
}

.member-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.team-member:hover .member-image {
    transform: scale(1.08);
    box-shadow: 0 0 0 4px rgba(79, 158, 255, 0.2);
}

.team-member h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.4rem;
}

.member-role {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.3rem;
}

.member-id {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.member-social {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.member-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(79, 158, 255, 0.1);
    border: 1px solid rgba(79, 158, 255, 0.2);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.88rem;
    transition: var(--transition);
}

.member-social a:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: scale(1.12);
}

.supervisor-info {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    text-align: center;
    backdrop-filter: blur(10px);
}

.supervisor-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.4rem;
    color: #fff;
}

.supervisor-info h3 {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 1rem;
}

.supervisor-names {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.supervisor-names span {
    font-size: 1rem;
    color: var(--primary);
    font-weight: 600;
}

.supervisor-divider {
    color: var(--text-muted);
}

.supervisor-info p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

/* ================================================================
   Contact Section
================================================================ */
.contact {
    background: var(--bg-mid);
    border-top: 1px solid var(--border);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.contact-item:hover {
    border-color: var(--border-hover);
    transform: translateX(4px);
}

.contact-item-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    background: var(--gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: #fff;
}

.contact-item h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.2rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-item p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(6, 12, 26, 0.7);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text);
    transition: var(--transition);
    resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 158, 255, 0.1);
}

/* ================================================================
   Footer
================================================================ */
.footer {
    background: var(--bg);
    border-top: 1px solid var(--border);
    padding: 64px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1rem;
}

.footer-logo {
    height: 36px;
    width: auto;
    object-fit: contain;
}

.footer-logo-text {
    font-size: 1.3rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-about p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 300px;
}

.footer-partner-logos {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-top: 20px;
}

.partner-logo {
    height: 55px;
    width: auto;
    object-fit: contain;
    opacity: 0.85;
    transition: var(--transition);
    filter: grayscale(0%);
}

.partner-logo:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.25rem;
}

.footer-links li { margin-bottom: 0.6rem; }

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 4px;
}

.footer-contact p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact i {
    color: var(--primary);
    width: 14px;
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ================================================================
   Scroll to Top Button
================================================================ */
.scroll-top-btn {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--gradient);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(79, 158, 255, 0.4);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition: var(--transition);
}

.scroll-top-btn.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(79, 158, 255, 0.6);
}

/* ================================================================
   Scroll-Triggered Animation Classes
================================================================ */
.reveal-up,
.reveal-left,
.reveal-right,
.slide-left,
.slide-right {
    opacity: 0;
    transition: opacity 0.7s ease, transform 0.7s ease;
    transition-delay: var(--delay, 0s);
}

.reveal-up    { transform: translateY(40px); }
.reveal-left  { transform: translateX(-50px); }
.reveal-right { transform: translateX(50px); }
.slide-left   { transform: translateX(-60px); }
.slide-right  { transform: translateX(60px); }

.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible,
.slide-left.visible,
.slide-right.visible {
    opacity: 1;
    transform: translate(0);
}

/* ================================================================
   Keyframe Animations
================================================================ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(50px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-16px); }
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%      { transform: translate(30px, -30px) scale(1.05); }
    66%      { transform: translate(-20px, 20px) scale(0.97); }
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50%      { opacity: 0.9; transform: scale(1.1); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: 0.5; transform: scale(0.75); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(8px); }
}

/* ================================================================
   Responsive Design
================================================================ */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .tech-grid     { grid-template-columns: repeat(2, 1fr); }
    .team-grid     { grid-template-columns: repeat(2, 1fr); }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    section { padding: 72px 0; }

    /* Mobile Nav */
    .nav-menu {
        position: fixed;
        inset: var(--nav-height) 0 0 0;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 32px;
        gap: 8px;
        background: rgba(6, 12, 26, 0.97);
        backdrop-filter: blur(20px);
        transform: translateX(100%);
        transition: transform 0.35s ease;
        z-index: 900;
    }

    .nav-menu.active { transform: translateX(0); }

    .nav-link {
        font-size: 1rem;
        padding: 10px 24px;
    }

    .hamburger { display: flex; }

    /* Hero mobile */
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
        padding-top: 40px;
    }

    .hero-buttons { justify-content: center; }
    .hero-badge   { justify-content: center; }

    .hero-image { order: -1; }
    .hero-phone-image { max-width: 220px; }

    .hero-scroll-hint { display: none; }

    /* Sections */
    .about-stats { grid-template-columns: repeat(2, 1fr); }

    .features-grid   { grid-template-columns: 1fr; }
    .scenarios-grid  { grid-template-columns: 1fr; }
    .scenario-center { grid-column: auto; max-width: 100%; }
    .tech-grid       { grid-template-columns: 1fr; }
    .team-grid       { grid-template-columns: 1fr; }
    .contact-content { grid-template-columns: 1fr; }
    .footer-content  { grid-template-columns: 1fr; gap: 32px; }

    .contact-form { padding: 28px 20px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2.4rem; }
    .about-stats { grid-template-columns: 1fr 1fr; }
    .supervisor-info { padding: 32px 20px; }
    .supervisor-names { flex-direction: column; gap: 8px; }
    .supervisor-divider { display: none; }
}

/* ================================================================
   Reduced Motion
================================================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}