/* ========================================
   ERYDENT - Global Styles
   Modern, Professional, 3D Effects
   ======================================== */

/* ========== CSS Variables ========== */
:root {
    /* Primary Colors */
    --primary: #2563EB;
    --primary-dark: #1E40AF;
    --primary-light: #3B82F6;
    --primary-glow: rgba(37, 99, 235, 0.5);

    /* Accent Colors */
    --accent-cyan: #06B6D4;
    --accent-sky: #38BDF8;
    --accent-purple: #8B5CF6;
    --accent-pink: #EC4899;
    --accent-green: #10B981;
    --accent-yellow: #F59E0B;

    /* Neutral Colors */
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --dark: #030712;

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

    /* Spacing */
    --section-padding: clamp(4rem, 10vw, 8rem);
    --container-max: 1280px;
    --container-padding: clamp(1rem, 5vw, 2rem);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px var(--primary-glow);
    --shadow-glow-lg: 0 0 80px var(--primary-glow);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    overflow-x: hidden;
}

/* ========== Typography ========== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ========== Container ========== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ========== Sections ========== */
section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-subtitle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: 1rem;
}

.section-subtitle::before,
.section-subtitle::after {
    content: '';
    width: 2rem;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
    border-radius: var(--radius-full);
}

.section-title {
    margin-bottom: 1.5rem;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    box-shadow: var(--shadow-lg), 0 0 0 0 var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    color: var(--white);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

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

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    color: var(--primary-dark);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

/* ========== Cards ========== */
.card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

/* 3D Card Effect */
.card-3d {
    transform-style: preserve-3d;
    perspective: 1000px;
}

.card-3d:hover {
    transform: perspective(1000px) rotateY(3deg) rotateX(3deg) translateY(-8px);
}

/* Glassmorphism Card */
.card-glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.card-glass-dark {
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--white);
}

/* ========== Form Elements ========== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--gray-900);
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    outline: none;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* ========== Icons ========== */
.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.icon-box {
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
    color: var(--white);
    transition: all var(--transition-base);
}

.icon-box:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-glow);
}

/* ========== Animations ========== */
@keyframes float {

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

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

@keyframes pulse-glow {

    0%,
    100% {
        box-shadow: 0 0 20px var(--primary-glow);
        opacity: 1;
    }

    50% {
        box-shadow: 0 0 40px var(--primary-glow);
        opacity: 0.8;
    }
}

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

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

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

@keyframes rotate-slow {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

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

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

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

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

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

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

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

/* ========== Animation Utilities ========== */
.animate-float {
    animation: float 6s ease-in-out infinite;
}

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

.animate-gradient {
    background-size: 400% 400%;
    animation: gradient-shift 15s ease infinite;
}

.animate-rotate {
    animation: rotate-slow 20s linear infinite;
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.17, 0.55, 0.55, 1);
}

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

.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;
}

/* ========== Gradient Backgrounds ========== */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
}

.bg-gradient-hero {
    background: linear-gradient(-45deg, var(--primary-dark), var(--primary), var(--accent-cyan), var(--accent-purple));
    background-size: 400% 400%;
    animation: gradient-shift 15s ease infinite;
}

.bg-gradient-dark {
    background: linear-gradient(180deg, var(--gray-900), var(--dark));
}

.bg-mesh {
    background-color: var(--gray-50);
    background-image:
        radial-gradient(at 40% 20%, hsla(217, 91%, 60%, 0.1) 0px, transparent 50%),
        radial-gradient(at 80% 0%, hsla(189, 100%, 56%, 0.1) 0px, transparent 50%),
        radial-gradient(at 0% 50%, hsla(355, 100%, 93%, 0.1) 0px, transparent 50%),
        radial-gradient(at 80% 50%, hsla(340, 100%, 76%, 0.1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, hsla(269, 100%, 77%, 0.1) 0px, transparent 50%);
}

/* ========== Particles ========== */
.particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
}

.particle:nth-child(1) {
    left: 10%;
    top: 20%;
    animation-delay: 0s;
    animation-duration: 8s;
}

.particle:nth-child(2) {
    left: 20%;
    top: 80%;
    animation-delay: 1s;
    animation-duration: 10s;
}

.particle:nth-child(3) {
    left: 30%;
    top: 40%;
    animation-delay: 2s;
    animation-duration: 7s;
}

.particle:nth-child(4) {
    left: 50%;
    top: 60%;
    animation-delay: 3s;
    animation-duration: 9s;
}

.particle:nth-child(5) {
    left: 70%;
    top: 30%;
    animation-delay: 4s;
    animation-duration: 11s;
}

.particle:nth-child(6) {
    left: 80%;
    top: 70%;
    animation-delay: 5s;
    animation-duration: 8s;
}

.particle:nth-child(7) {
    left: 90%;
    top: 10%;
    animation-delay: 6s;
    animation-duration: 10s;
}

.particle:nth-child(8) {
    left: 40%;
    top: 90%;
    animation-delay: 7s;
    animation-duration: 9s;
}

/* ========== Utilities ========== */
.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-center {
    text-align: center;
}

.text-white {
    color: var(--white);
}

.text-primary {
    color: var(--primary);
}

.text-muted {
    color: var(--gray-500);
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-1 {
    gap: 0.5rem;
}

.gap-2 {
    gap: 1rem;
}

.gap-3 {
    gap: 1.5rem;
}

.gap-4 {
    gap: 2rem;
}

.grid {
    display: grid;
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

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

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-3 {
    margin-top: 1.5rem;
}

.mt-4 {
    margin-top: 2rem;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {

    .grid-cols-4,
    .grid-cols-3,
    .grid-cols-2 {
        grid-template-columns: 1fr;
    }

    .section-header {
        margin-bottom: 3rem;
    }
}