/* ===== Modern Color Scheme Variables ===== */
:root {
    /* Primary Colors - Professional Blue-Green Geology Theme */
    --primary: #0F766E;
    /* Teal 700 - Main brand */
    --primary-light: #14B8A6;
    /* Teal 500 */
    --primary-dark: #115E59;
    /* Teal 800 */
    --secondary: #0891B2;
    /* Cyan 600 */
    --accent: #F59E0B;
    /* Amber 500 - For highlights */

    /* Neutral Colors */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0F766E 0%, #14B8A6 100%);
    --gradient-hero: linear-gradient(135deg, rgba(15, 118, 110, 0.95) 0%, rgba(8, 145, 178, 0.9) 100%);
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes floating {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }

    100% {
        background-position: 1000px 0;
    }
}

@keyframes pulse-slow {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

/* Hero Background Parallax Effect */
.hero-parallax {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

/* Animated Gradient Background for Hero */
.hero-gradient-animated {
    background: var(--gradient-hero);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* Fade In Animations */
.fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

.fade-in-delay-1 {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
}

.fade-in-delay-2 {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.4s forwards;
}

.fade-in-delay-3 {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.6s forwards;
}

/* Floating Animation for Icons/Elements */
.floating {
    animation: floating 3s ease-in-out infinite;
}

/* ===== Card Hover Effects ===== */
.card-hover {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(15, 118, 110, 0.1), 0 10px 10px -5px rgba(15, 118, 110, 0.04);
}

/* Shimmer Effect for Loading/Highlights */
.shimmer {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

/* ===== Button Enhancements ===== */
.btn-primary {
    background: var(--gradient-primary);
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(15, 118, 110, 0.1), 0 2px 4px -1px rgba(15, 118, 110, 0.06);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(15, 118, 110, 0.2), 0 4px 6px -2px rgba(15, 118, 110, 0.1);
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

/* ===== Scroll Dot Animation */
@keyframes scroll-dot {
    0% {
        transform: translateY(0);
        opacity: 1;
    }

    100% {
        transform: translateY(15px);
        opacity: 0;
    }
}

.animate-scroll {
    animation: scroll-dot 2s infinite;
}

/* Floating Animation */
@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.animate-float {
    animation: float 4s ease-in-out infinite;
}

/* Glassmorphism Effect */
.glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.glass-dark {
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Gradient Text */
.text-gradient {
    background: linear-gradient(135deg, #14B8A6, #0891B2);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ===== Section Animations ===== */
.section-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.section-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Particle Background Effect ===== */
.particles-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float-particles 20s infinite ease-in-out;
}

@keyframes float-particles {

    0%,
    100% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }

    10% {
        opacity: 1;
    }

    90% {
        opacity: 1;
    }

    100% {
        transform: translateY(-100vh) translateX(100px);
        opacity: 0;
    }
}

/* ===== Timeline Effect ===== */
.timeline-item {
    position: relative;
    padding-left: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--gradient-primary);
}

.timeline-item::after {
    content: '';
    position: absolute;
    left: -6px;
    top: 0.5rem;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 0 4px var(--gray-50);
}

/* ===== Progress Bars ===== */
.progress-bar {
    height: 0.5rem;
    background: var(--gray-200);
    border-radius: 1rem;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 1rem;
    transition: width 1.5s ease-out;
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

/* ===== Glowing Effect ===== */
.glow {
    box-shadow: 0 0 20px rgba(15, 118, 110, 0.5);
}

.glow-hover:hover {
    box-shadow: 0 0 30px rgba(15, 118, 110, 0.7);
    transition: box-shadow 0.3s ease;
}

/* ===== Text Gradient ===== */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Scroll Reveal Animations ===== */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out;
}

/* ===== Loading Spinner ===== */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===== Ripple Effect ===== */
@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.ripple-effect {
    position: relative;
    overflow: hidden;
}

.ripple-effect::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
}

.ripple-effect:active::after {
    animation: ripple 0.6s ease-out;
}

/* ===== Responsive Typography ===== */
@media (max-width: 768px) {
    .hero-gradient-animated {
        background-attachment: scroll;
    }
}

/* ===== Pulse Animation for Attention ===== */
.pulse-attention {
    animation: pulse-slow 2s ease-in-out infinite;
}