/* ============================================
   SAYE TECHNOLOGIES PREMIUM DESIGN SYSTEM
   Modern, Glassmorphic, Animated
   ============================================ */

/* ============================================
   1. CSS VARIABLES - DESIGN TOKENS
   ============================================ */
:root {
    /* Modern Color Palette */
    --color-primary: #2B8100;
    --color-primary-dark: #1F5C00;
    --color-primary-light: #3DA412;
    --color-secondary: #e74c3c;
    --color-accent: #f39c12;
    --color-success: #2B8100;
    --color-warning: #f39c12;
    --color-error: #e74c3c;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #2B8100 0%, #1F5C00 100%);
    --gradient-secondary: linear-gradient(135deg, #e74c3c 0%, #d6004f 100%);
    --gradient-accent: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
    --gradient-dark: linear-gradient(135deg, #2c3e50 0%, #1a252f 100%);
    --gradient-light: linear-gradient(135deg, #ecf0f1 0%, #bdc3c7 100%);
    --gradient-hero: linear-gradient(135deg, rgba(43, 129, 0, 0.9) 0%, rgba(31, 92, 0, 0.85) 100%);

    /* Glassmorphism Colors */
    --glass-white: rgba(255, 255, 255, 0.1);
    --glass-white-medium: rgba(255, 255, 255, 0.2);
    --glass-white-strong: rgba(255, 255, 255, 0.3);
    --glass-dark: rgba(0, 0, 0, 0.1);
    --glass-dark-medium: rgba(0, 0, 0, 0.2);
    --glass-dark-strong: rgba(0, 0, 0, 0.3);

    /* Neutral Colors */
    --color-dark: #1a252f;
    --color-dark-light: #2c3e50;
    --color-gray: #7f8c8d;
    --color-gray-light: #bdc3c7;
    --color-gray-lighter: #ecf0f1;
    --color-white: #ffffff;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Outfit', 'Inter', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(43, 129, 0, 0.3);

    /* Transitions */
    --transition-fast: 0.2s ease-in-out;
    --transition-base: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    --transition-slowest: 0.8s ease-in-out;

    /* Z-index */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-tooltip: 500;
}

/* ============================================
   2. GLASSMORPHISM UTILITIES
   ============================================ */
.glass {
    background: var(--glass-white);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-md);
}

.glass-medium {
    background: var(--glass-white-medium);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: var(--shadow-lg);
}

.glass-strong {
    background: var(--glass-white-strong);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-xl);
}

.glass-dark {
    background: var(--glass-dark);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ============================================
   3. ANIMATION KEYFRAMES
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {

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

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

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

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

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

@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

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

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

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

/* ============================================
   4. ANIMATION UTILITIES
   ============================================ */
.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.animate-fade-in-down {
    animation: fadeInDown 0.8s ease-out;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.8s ease-out;
}

.animate-fade-in-right {
    animation: fadeInRight 0.8s ease-out;
}

.animate-scale-in {
    animation: scaleIn 0.6s ease-out;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* Staggered Animations */
.stagger-1 {
    animation-delay: 0.1s;
}

.stagger-2 {
    animation-delay: 0.2s;
}

.stagger-3 {
    animation-delay: 0.3s;
}

.stagger-4 {
    animation-delay: 0.4s;
}

.stagger-5 {
    animation-delay: 0.5s;
}

.stagger-6 {
    animation-delay: 0.6s;
}

/* ============================================
   5. HOVER EFFECTS
   ============================================ */
.hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.hover-grow {
    transition: transform var(--transition-base);
}

.hover-grow:hover {
    transform: scale(1.05);
}

.hover-glow {
    transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
    box-shadow: var(--shadow-glow);
}

.hover-tilt {
    transition: transform var(--transition-base);
    transform-style: preserve-3d;
}

.hover-tilt:hover {
    transform: perspective(1000px) rotateX(2deg) rotateY(-2deg) scale(1.02);
}

.hover-shine {
    position: relative;
    overflow: hidden;
}

.hover-shine::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.3),
            transparent);
    transition: left var(--transition-slow);
}

.hover-shine:hover::before {
    left: 100%;
}

/* ============================================
   6. GRADIENT TEXT
   ============================================ */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
}

.gradient-text-animated {
    background: linear-gradient(90deg,
            var(--color-primary),
            var(--color-secondary),
            var(--color-primary));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
}

/* ============================================
   7. MODERN CARDS
   ============================================ */
.premium-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.premium-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.glass-card {
    background: var(--glass-white-medium);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.glass-card:hover {
    background: var(--glass-white-strong);
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   8. MODERN BUTTONS
   ============================================ */
.btn-premium {
    position: relative;
    padding: 1rem 2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-family: var(--font-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-base);
    overflow: hidden;
    border: none;
    cursor: pointer;
}

.btn-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.3),
            transparent);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
}

.btn-premium:hover::before {
    transform: translateX(100%);
}

.btn-gradient {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-glass {
    background: var(--glass-white-medium);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-glass:hover {
    background: var(--glass-white-strong);
    transform: translateY(-2px);
}

/* ============================================
   9. SCROLL ANIMATIONS (Intersection Observer)
   ============================================ */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.scroll-reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

.scroll-reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

.scroll-reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* ============================================
   10. PARALLAX BACKGROUNDS
   ============================================ */
.parallax-bg {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    position: relative;
}

.parallax-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
            rgba(43, 129, 0, 0.85),
            rgba(31, 92, 0, 0.9));
}

/* ============================================
   11. LOADING & SKELETON
   ============================================ */
.skeleton {
    background: linear-gradient(90deg,
            var(--color-gray-lighter) 0%,
            var(--color-gray-light) 50%,
            var(--color-gray-lighter) 100%);
    background-size: 200% 100%;
    animation: shimmer 1.5s ease infinite;
    border-radius: var(--radius-sm);
}

/* ============================================
   12. BADGES & PILLS
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
}

.badge-gradient {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

.badge-glass {
    background: var(--glass-white-medium);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
}

/* ============================================
   13. COUNTERS (for stats)
   ============================================ */
.counter {
    font-size: 3rem;
    font-weight: 700;
    font-family: var(--font-heading);
    line-height: 1;
    animation: countUp 0.8s ease-out;
}

/* ============================================
   14. RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 768px) {
    :root {
        --space-xl: 2rem;
        --space-2xl: 3rem;
        --space-3xl: 4rem;
    }

    .counter {
        font-size: 2rem;
    }
}

/* ============================================
   15. UTILITY CLASSES
   ============================================ */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.grid-auto-fit {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

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

.overflow-hidden {
    overflow: hidden;
}

.relative {
    position: relative;
}

.absolute-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}