/* =============================================
   Animations & Visual Enhancements
   ============================================= */

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.92);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* --- Page Load Animations --- */
.animate-hero {
    animation: fadeInUp 0.8s ease-out forwards;
}

.animate-hero-sub {
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
    opacity: 0;
}

.animate-hero-cta {
    animation: fadeInUp 0.8s ease-out 0.4s forwards;
    opacity: 0;
}

/* --- Scroll Reveal --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal-scale.visible {
    opacity: 1;
    transform: scale(1);
}

/* Staggered delays for card grids */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* --- Card Hover Effects --- */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.hover-glow {
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.hover-glow:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(4, 117, 107, 0.25);
}

/* --- Hero Pattern Overlay --- */
.hero-pattern {
    position: relative;
}

.hero-pattern::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: 1;
}

.hero-pattern > * {
    position: relative;
    z-index: 2;
}

/* --- Decorative Accent Lines --- */
.accent-line {
    position: relative;
}

.accent-line::before {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* --- Section Divider Wave --- */
.section-wave {
    position: relative;
    overflow: hidden;
}

.section-wave::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    width: 100%;
    height: 40px;
    background: var(--white);
    clip-path: ellipse(55% 100% at 50% 0%);
    z-index: 1;
}

/* =============================================
   Textures & Atmospheric Effects
   ============================================= */

/* --- SVG Grain / Noise Overlay --- */
.grain-overlay {
    position: relative;
}

.grain-overlay::after {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 128px 128px;
    pointer-events: none;
    z-index: 1;
}

.grain-overlay > * {
    position: relative;
    z-index: 2;
}

/* --- Dot Pattern Background --- */
.dot-pattern {
    background-image: radial-gradient(circle, var(--primary-color) 1px, transparent 1px);
    background-size: 24px 24px;
}

.dot-pattern-light {
    background-image: radial-gradient(circle, rgba(4, 117, 107, 0.12) 1px, transparent 1px);
    background-size: 20px 20px;
}

/* --- Gradient Mesh Atmosphere --- */
.gradient-mesh {
    position: relative;
}

.gradient-mesh::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(4, 117, 107, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(4, 117, 107, 0.04) 0%, transparent 40%),
        radial-gradient(ellipse at 50% 80%, rgba(5, 159, 160, 0.05) 0%, transparent 45%);
    pointer-events: none;
}

/* --- Diagonal Stripe Section --- */
.diagonal-stripe {
    position: relative;
    overflow: hidden;
}

.diagonal-stripe::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 20px,
        rgba(4, 117, 107, 0.02) 20px,
        rgba(4, 117, 107, 0.02) 21px
    );
    pointer-events: none;
}

/* =============================================
   Distinctive Card Designs
   ============================================= */

/* --- Card with Gradient Top Border --- */
.card-accent {
    position: relative;
    overflow: hidden;
}

.card-accent::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light), var(--primary-color));
    border-radius: 10px 10px 0 0;
}

/* --- Card with Subtle Corner Decoration --- */
.card-corner {
    position: relative;
    overflow: hidden;
}

.card-corner::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, transparent 50%, rgba(4, 117, 107, 0.06) 50%);
    border-radius: 0 0 10px 0;
}

/* --- Card with Colored Shadow --- */
.card-shadow-brand {
    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.06),
        0 1px 3px rgba(4, 117, 107, 0.1);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.card-shadow-brand:hover {
    box-shadow:
        0 8px 24px rgba(0, 0, 0, 0.1),
        0 2px 6px rgba(4, 117, 107, 0.18);
    transform: translateY(-4px);
}

/* --- Card with Left Accent Line --- */
.card-left-line {
    position: relative;
    padding-left: 2rem;
    border-left: 4px solid transparent;
    border-image: linear-gradient(180deg, var(--primary-color), var(--primary-light)) 1;
}

/* --- Card with Glow Border on Hover --- */
.card-glow-border {
    transition: box-shadow 0.3s ease;
}

.card-glow-border:hover {
    box-shadow: 0 0 0 2px rgba(4, 117, 107, 0.3), 0 8px 20px rgba(0, 0, 0, 0.1);
}

/* Reduced motion: disable animations */
@media (prefers-reduced-motion: reduce) {
    .reveal,
    .reveal-left,
    .reveal-right,
    .reveal-scale {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }

    .animate-hero,
    .animate-hero-sub,
    .animate-hero-cta {
        animation: none !important;
        opacity: 1 !important;
    }
}