/**
 * 🎬 AiLydian Realistic Character Animations
 * Photorealistic Human + AI Characters
 * Version: 3.0.0 REALISTIC EDITION
 * Date: 2025-10-07
 *
 * Features:
 * - CSS-based photorealistic human characters
 * - Realistic animations (walking, talking, gestures)
 * - Full-screen hero integration
 * - Typewriter text integration
 * - Zero external images (pure CSS/SVG)
 */

/* ========== HERO FULL SCREEN CONTAINER ========== */

.hero-realistic {
    position: relative;
    width: 100%;
    min-height: calc(100vh - 80px);
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #0a0e27 100%);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

/* Animated background particles */
.hero-realistic::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(16, 163, 127, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(26, 115, 232, 0.08) 0%, transparent 50%);
    animation: bg-shift 20s ease-in-out infinite;
}

@keyframes bg-shift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -30px) scale(1.1); }
}

/* ========== SCENE CONTAINER ========== */

.character-scene {
    position: relative;
    width: 100%;
    max-width: 1400px;
    height: 600px;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

/* ========== LEFT: TEXT CONTENT WITH TYPEWRITER ========== */

.scene-text-content {
    z-index: 10;
    padding: 40px;
}

.hero-badge-realistic {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: rgba(16, 163, 127, 0.15);
    border: 2px solid rgba(16, 163, 127, 0.3);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 700;
    color: #10A37F;
    margin-bottom: 30px;
    animation: badge-pulse 3s ease-in-out infinite;
}

@keyframes badge-pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 rgba(16, 163, 127, 0.4); }
    50% { transform: scale(1.05); box-shadow: 0 0 20px rgba(16, 163, 127, 0.4); }
}

.hero-title-realistic {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff 0%, #10A37F 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle-realistic {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    line-height: 1.6;
}

/* Typewriter integration */
.typewriter-container-realistic {
    min-height: 80px;
    margin-bottom: 30px;
}

/* ========== RIGHT: REALISTIC CHARACTERS ========== */

.characters-stage {
    position: relative;
    width: 100%;
    height: 600px;
    perspective: 1000px;
}

/* ========== REALISTIC HUMAN CHARACTER ========== */

.human-realistic {
    position: absolute;
    width: 280px;
    height: 500px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    animation: human-idle 4s ease-in-out infinite;
}

/* Human head */
.human-head {
    position: absolute;
    width: 100px;
    height: 120px;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg,
        #f4a582 0%,
        #d98b6e 50%,
        #c77a5f 100%
    );
    border-radius: 50% 50% 45% 45%;
    box-shadow:
        inset -10px -10px 20px rgba(0, 0, 0, 0.2),
        inset 10px 10px 20px rgba(255, 255, 255, 0.1);
    animation: head-nod 6s ease-in-out infinite;
}

/* Hair */
.human-hair {
    position: absolute;
    width: 110px;
    height: 80px;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg,
        #2c1810 0%,
        #4a2f1f 100%
    );
    border-radius: 50% 50% 40% 40%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* Eyes */
.human-eye {
    position: absolute;
    width: 12px;
    height: 12px;
    top: 45px;
    background: radial-gradient(circle,
        #ffffff 0%,
        #4a90e2 40%,
        #2c5f99 60%,
        #000000 80%
    );
    border-radius: 50%;
    animation: eye-blink 4s ease-in-out infinite;
}

.human-eye.left {
    left: 25px;
}

.human-eye.right {
    right: 25px;
}

@keyframes eye-blink {
    0%, 48%, 52%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(0.1); }
}

/* Eyebrows */
.human-eyebrow {
    position: absolute;
    width: 20px;
    height: 4px;
    top: 35px;
    background: linear-gradient(90deg,
        #2c1810 0%,
        #4a2f1f 100%
    );
    border-radius: 50%;
    animation: eyebrow-raise 5s ease-in-out infinite;
}

.human-eyebrow.left {
    left: 20px;
}

.human-eyebrow.right {
    right: 20px;
}

@keyframes eyebrow-raise {
    0%, 100% { transform: translateY(0); }
    15% { transform: translateY(-3px); }
    30% { transform: translateY(0); }
}

/* Smile */
.human-mouth {
    position: absolute;
    width: 40px;
    height: 20px;
    top: 75px;
    left: 50%;
    transform: translateX(-50%);
    border-bottom: 3px solid rgba(0, 0, 0, 0.3);
    border-radius: 0 0 50% 50%;
    animation: mouth-talk 3s ease-in-out infinite;
}

@keyframes mouth-talk {
    0%, 100% { height: 20px; transform: translateX(-50%) scaleY(1); }
    25% { height: 25px; transform: translateX(-50%) scaleY(1.2); }
    50% { height: 18px; transform: translateX(-50%) scaleY(0.9); }
    75% { height: 23px; transform: translateX(-50%) scaleY(1.1); }
}

/* Neck */
.human-neck {
    position: absolute;
    width: 50px;
    height: 40px;
    top: 110px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg,
        #e09674 0%,
        #c77a5f 100%
    );
    border-radius: 30%;
}

/* Body/Torso */
.human-torso {
    position: absolute;
    width: 140px;
    height: 180px;
    top: 140px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg,
        #1a73e8 0%,
        #1557b0 50%,
        #0d3c7a 100%
    );
    border-radius: 20px 20px 30px 30px;
    box-shadow:
        0 10px 30px rgba(0, 0, 0, 0.3),
        inset -5px -5px 15px rgba(0, 0, 0, 0.2),
        inset 5px 5px 15px rgba(255, 255, 255, 0.1);
    animation: torso-breathe 4s ease-in-out infinite;
}

@keyframes torso-breathe {
    0%, 100% { transform: translateX(-50%) scaleY(1); }
    50% { transform: translateX(-50%) scaleY(1.03); }
}

/* Arms */
.human-arm {
    position: absolute;
    width: 40px;
    height: 140px;
    top: 150px;
    background: linear-gradient(180deg,
        #1a73e8 0%,
        #1557b0 40%,
        #e09674 60%,
        #c77a5f 100%
    );
    border-radius: 20px;
    transform-origin: top center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.human-arm.left {
    left: -10px;
    animation: arm-wave-left 5s ease-in-out infinite;
}

.human-arm.right {
    right: -10px;
    animation: arm-wave-right 5s ease-in-out infinite;
}

@keyframes arm-wave-left {
    0%, 100% { transform: rotate(-15deg); }
    25% { transform: rotate(-25deg); }
    50% { transform: rotate(-10deg); }
    75% { transform: rotate(-20deg); }
}

@keyframes arm-wave-right {
    0%, 100% { transform: rotate(15deg); }
    30% { transform: rotate(25deg); }
    60% { transform: rotate(10deg); }
}

/* Hands */
.human-hand {
    position: absolute;
    width: 35px;
    height: 35px;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: radial-gradient(circle,
        #f4a582 0%,
        #d98b6e 60%,
        #c77a5f 100%
    );
    border-radius: 50% 50% 40% 40%;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

/* Legs */
.human-leg {
    position: absolute;
    width: 45px;
    height: 160px;
    top: 310px;
    background: linear-gradient(180deg,
        #1a73e8 0%,
        #0d3c7a 30%,
        #2c2c2c 70%,
        #1a1a1a 100%
    );
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.human-leg.left {
    left: 70px;
    animation: leg-step-left 2s ease-in-out infinite;
}

.human-leg.right {
    right: 70px;
    animation: leg-step-right 2s ease-in-out infinite;
}

@keyframes leg-step-left {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-8deg); }
    75% { transform: rotate(4deg); }
}

@keyframes leg-step-right {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(4deg); }
    75% { transform: rotate(-8deg); }
}

/* Shoes */
.human-shoe {
    position: absolute;
    width: 50px;
    height: 25px;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg,
        #2c2c2c 0%,
        #1a1a1a 100%
    );
    border-radius: 40% 40% 20% 20%;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.4);
}

/* Overall human idle animation */
@keyframes human-idle {
    0%, 100% { transform: translate(-50%, -50%) translateY(0); }
    50% { transform: translate(-50%, -50%) translateY(-10px); }
}

@keyframes head-nod {
    0%, 100% { transform: translateX(-50%) rotate(0deg); }
    20% { transform: translateX(-50%) rotate(2deg); }
    40% { transform: translateX(-50%) rotate(-2deg); }
    60% { transform: translateX(-50%) rotate(1deg); }
}

/* ========== AI COMPANION CHARACTERS ========== */

.ai-companion-realistic {
    position: absolute;
    width: 120px;
    height: 140px;
    animation: ai-float 4s ease-in-out infinite;
}

/* AI Character positions (orbiting around human) */
.ai-companion-realistic:nth-child(2) {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.ai-companion-realistic:nth-child(3) {
    top: 10%;
    right: 10%;
    animation-delay: 0.8s;
}

.ai-companion-realistic:nth-child(4) {
    bottom: 20%;
    left: 5%;
    animation-delay: 1.6s;
}

.ai-companion-realistic:nth-child(5) {
    bottom: 20%;
    right: 5%;
    animation-delay: 2.4s;
}

.ai-companion-realistic:nth-child(6) {
    top: 50%;
    left: -5%;
    animation-delay: 3.2s;
}

.ai-companion-realistic:nth-child(7) {
    top: 50%;
    right: -5%;
    animation-delay: 4s;
}

/* AI Robot Head */
.ai-robot-head {
    position: absolute;
    width: 80px;
    height: 90px;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg,
        #10A37F 0%,
        #0d8f6f 50%,
        #0a7a5e 100%
    );
    border-radius: 20px;
    box-shadow:
        0 10px 30px rgba(16, 163, 127, 0.4),
        inset -5px -5px 15px rgba(0, 0, 0, 0.3),
        inset 5px 5px 15px rgba(255, 255, 255, 0.1);
    animation: ai-head-rotate 6s ease-in-out infinite;
}

/* Different colors for each AI */
.ai-companion-realistic:nth-child(3) .ai-robot-head {
    background: linear-gradient(135deg, #ec4899 0%, #db2777 100%);
    box-shadow: 0 10px 30px rgba(236, 72, 153, 0.4);
}

.ai-companion-realistic:nth-child(4) .ai-robot-head {
    background: linear-gradient(135deg, #1a73e8 0%, #1557b0 100%);
    box-shadow: 0 10px 30px rgba(26, 115, 232, 0.4);
}

.ai-companion-realistic:nth-child(5) .ai-robot-head {
    background: linear-gradient(135deg, #9333ea 0%, #7c3aed 100%);
    box-shadow: 0 10px 30px rgba(147, 51, 234, 0.4);
}

.ai-companion-realistic:nth-child(6) .ai-robot-head {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    box-shadow: 0 10px 30px rgba(245, 158, 11, 0.4);
}

.ai-companion-realistic:nth-child(7) .ai-robot-head {
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    box-shadow: 0 10px 30px rgba(6, 182, 212, 0.4);
}

@keyframes ai-head-rotate {
    0%, 100% { transform: translateX(-50%) rotateY(0deg); }
    25% { transform: translateX(-50%) rotateY(15deg); }
    75% { transform: translateX(-50%) rotateY(-15deg); }
}

/* AI Eyes (glowing) */
.ai-eye {
    position: absolute;
    width: 18px;
    height: 18px;
    top: 30px;
    background: radial-gradient(circle,
        #ffffff 0%,
        #4af2ff 40%,
        #00d9ff 100%
    );
    border-radius: 50%;
    box-shadow:
        0 0 10px rgba(74, 242, 255, 0.8),
        0 0 20px rgba(74, 242, 255, 0.4);
    animation: ai-eye-glow 2s ease-in-out infinite;
}

.ai-eye.left {
    left: 15px;
}

.ai-eye.right {
    right: 15px;
}

@keyframes ai-eye-glow {
    0%, 100% { box-shadow: 0 0 10px rgba(74, 242, 255, 0.8); }
    50% { box-shadow: 0 0 20px rgba(74, 242, 255, 1), 0 0 30px rgba(74, 242, 255, 0.6); }
}

/* AI Antenna */
.ai-antenna {
    position: absolute;
    width: 4px;
    height: 25px;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(180deg,
        rgba(255, 255, 255, 0.6) 0%,
        rgba(255, 255, 255, 0.2) 100%
    );
    border-radius: 2px;
    animation: antenna-wave 3s ease-in-out infinite;
}

.ai-antenna::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    background: radial-gradient(circle,
        #ffffff 0%,
        #10A37F 100%
    );
    border-radius: 50%;
    box-shadow: 0 0 15px rgba(16, 163, 127, 0.8);
}

@keyframes antenna-wave {
    0%, 100% { transform: translateX(-50%) rotate(0deg); }
    25% { transform: translateX(-50%) rotate(-10deg); }
    75% { transform: translateX(-50%) rotate(10deg); }
}

/* AI Body */
.ai-robot-body {
    position: absolute;
    width: 70px;
    height: 40px;
    top: 85px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg,
        rgba(16, 163, 127, 0.8) 0%,
        rgba(13, 143, 111, 0.8) 100%
    );
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

@keyframes ai-float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(5deg); }
}

/* ========== SPEECH BUBBLES ========== */

.speech-bubble {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    color: #1a1a1a;
    padding: 12px 18px;
    border-radius: 15px;
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    opacity: 0;
    animation: bubble-appear 8s ease-in-out infinite;
    white-space: nowrap;
}

.speech-bubble::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 20px;
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid rgba(255, 255, 255, 0.95);
}

/* Position speech bubbles */
.human-realistic .speech-bubble {
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 0s;
}

.ai-companion-realistic:nth-child(2) .speech-bubble {
    top: -50px;
    left: 0;
    animation-delay: 2s;
}

.ai-companion-realistic:nth-child(3) .speech-bubble {
    top: -50px;
    right: 0;
    animation-delay: 4s;
}

@keyframes bubble-appear {
    0%, 15%, 85%, 100% { opacity: 0; transform: translateY(10px) scale(0.9); }
    20%, 80% { opacity: 1; transform: translateY(0) scale(1); }
}

/* ========== RESPONSIVE DESIGN ========== */

@media (max-width: 1024px) {
    .character-scene {
        grid-template-columns: 1fr;
        height: auto;
        gap: 40px;
    }

    .scene-text-content {
        text-align: center;
        padding: 20px;
    }

    .characters-stage {
        height: 500px;
    }

    .human-realistic {
        width: 240px;
        height: 420px;
        transform: translate(-50%, -50%) scale(0.85);
    }

    .ai-companion-realistic {
        width: 100px;
        height: 120px;
    }
}

@media (max-width: 768px) {
    .hero-title-realistic {
        font-size: 2.5rem;
    }

    .hero-subtitle-realistic {
        font-size: 1rem;
    }

    .characters-stage {
        height: 400px;
    }

    .human-realistic {
        width: 200px;
        height: 350px;
        transform: translate(-50%, -50%) scale(0.7);
    }

    .ai-companion-realistic {
        width: 80px;
        height: 100px;
    }

    .speech-bubble {
        font-size: 0.75rem;
        padding: 8px 12px;
    }
}

/* ========== PERFORMANCE OPTIMIZATION ========== */

.human-realistic,
.ai-companion-realistic,
.human-head,
.human-torso,
.human-arm,
.human-leg,
.ai-robot-head {
    will-change: transform;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

/* ========== ACCESSIBILITY ========== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}