/* Base Variables */
:root {
    /* Colors - Modern and Sophisticated Palette */
    --primary-color: #6366F1; /* Indigo */
    --primary-dark: #4F46E5;
    --primary-light: #A5B4FC;
    --primary-bg: rgba(99, 102, 241, 0.05);
    --secondary-color: #14B8A6; /* Teal */
    --secondary-dark: #0D9488;
    --secondary-light: #5EEAD4;
    --secondary-bg: rgba(20, 184, 166, 0.05);
    --accent-color: #F43F5E; /* Rose */
    --accent-dark: #E11D48;
    --accent-light: #FDA4AF;
    --dark-color: #0F172A; /* Slate 900 */
    --dark-color-800: #1E293B; /* Slate 800 */
    --light-color: #F8FAFC; /* Slate 50 */
    --light-color-100: #F1F5F9; /* Slate 100 */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    /* Typography - Improved Readability */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    --font-size-xs: 0.75rem;   /* 12px */
    --font-size-sm: 0.875rem;  /* 14px */
    --font-size-base: 1rem;    /* 16px */
    --font-size-lg: 1.125rem;  /* 18px */
    --font-size-xl: 1.25rem;   /* 20px */
    --font-size-2xl: 1.5rem;   /* 24px */
    --font-size-3xl: 1.875rem; /* 30px */
    --font-size-4xl: 2.25rem;  /* 36px */
    --font-size-5xl: 3rem;     /* 48px */
    --font-size-6xl: 3.75rem;  /* 60px */
    --font-size-7xl: 4.5rem;   /* 72px */
    --font-size-8xl: 6rem;     /* 96px */
    --font-size-9xl: 8rem;     /* 128px */

    /* Line Heights */
    --line-height-none: 1;
    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;

    /* Font Weights */
    --font-weight-thin: 100;
    --font-weight-extralight: 200;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;

    /* Spacing - More Precise Control */
    --spacing-0: 0;
    --spacing-px: 1px;
    --spacing-0-5: 0.125rem; /* 2px */
    --spacing-1: 0.25rem;    /* 4px */
    --spacing-1-5: 0.375rem; /* 6px */
    --spacing-2: 0.5rem;     /* 8px */
    --spacing-2-5: 0.625rem; /* 10px */
    --spacing-3: 0.75rem;    /* 12px */
    --spacing-3-5: 0.875rem; /* 14px */
    --spacing-4: 1rem;       /* 16px */
    --spacing-5: 1.25rem;    /* 20px */
    --spacing-6: 1.5rem;     /* 24px */
    --spacing-7: 1.75rem;    /* 28px */
    --spacing-8: 2rem;       /* 32px */
    --spacing-9: 2.25rem;    /* 36px */
    --spacing-10: 2.5rem;    /* 40px */
    --spacing-11: 2.75rem;   /* 44px */
    --spacing-12: 3rem;      /* 48px */
    --spacing-14: 3.5rem;    /* 56px */
    --spacing-16: 4rem;      /* 64px */
    --spacing-20: 5rem;      /* 80px */
    --spacing-24: 6rem;      /* 96px */
    --spacing-28: 7rem;      /* 112px */
    --spacing-32: 8rem;      /* 128px */
    --spacing-36: 9rem;      /* 144px */
    --spacing-40: 10rem;     /* 160px */
    --spacing-44: 11rem;     /* 176px */
    --spacing-48: 12rem;     /* 192px */
    --spacing-52: 13rem;     /* 208px */
    --spacing-56: 14rem;     /* 224px */
    --spacing-60: 15rem;     /* 240px */
    --spacing-64: 16rem;     /* 256px */
    --spacing-72: 18rem;     /* 288px */
    --spacing-80: 20rem;     /* 320px */
    --spacing-96: 24rem;     /* 384px */

    /* Borders - Refined */
    --border-radius-none: 0;
    --border-radius-sm: 0.125rem;  /* 2px */
    --border-radius: 0.25rem;      /* 4px */
    --border-radius-md: 0.375rem;  /* 6px */
    --border-radius-lg: 0.5rem;    /* 8px */
    --border-radius-xl: 0.75rem;   /* 12px */
    --border-radius-2xl: 1rem;     /* 16px */
    --border-radius-3xl: 1.5rem;   /* 24px */
    --border-radius-full: 9999px;

    /* Shadows - Enhanced Depth */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    --shadow-none: none;

    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --glass-blur: blur(10px);

    /* Transitions - Smoother Animations */
    --transition-fastest: 100ms;
    --transition-fast: 150ms;
    --transition: 200ms;
    --transition-medium: 300ms;
    --transition-slow: 500ms;
    --transition-slowest: 700ms;
    --transition-timing-ease: cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-timing-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Container */
    --container-padding: 1.5rem;
    --container-max-width: 1280px;

    /* Z-index */
    --z-0: 0;
    --z-10: 10;
    --z-20: 20;
    --z-30: 30;
    --z-40: 40;
    --z-50: 50;
    --z-auto: auto;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--dark-color);
    background-color: var(--light-color);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    line-height: var(--line-height-tight);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-4);
    color: var(--dark-color);
}

p {
    margin-bottom: var(--spacing-4);
}

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

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all var(--transition) var(--transition-timing-ease);
    position: relative;
}

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

/* Utility Classes */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s var(--transition-timing-ease),
                transform 0.8s var(--transition-timing-ease);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

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


/* Hero Section */
.hero {
    padding: 180px 0 120px;
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--light-color) 50%, var(--secondary-bg) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 20% 30%, var(--primary-bg) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, var(--secondary-bg) 0%, transparent 50%);
    opacity: 0.7;
    z-index: 0;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    animation: fadeInUp 1s var(--transition-timing-ease) forwards;
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-6);
    color: var(--dark-color);
    position: relative;
}

.hero-title .text-gradient {
    font-weight: var(--font-weight-black);
}

.hero-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius-full);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    margin-bottom: var(--spacing-10);
    max-width: 90%;
    line-height: var(--line-height-relaxed);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-4);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    animation: fadeIn 1.5s var(--transition-timing-ease) forwards;
}

.memory-visualization {
    position: relative;
    width: 500px;
    height: 500px;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.memory-node {
    position: absolute;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    box-shadow: var(--shadow-lg), 0 0 20px rgba(99, 102, 241, 0.3);
    animation: float 6s infinite ease-in-out;
    transform: translateZ(0);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.memory-node::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    animation: shine 3s infinite linear;
}

.memory-node:nth-child(1) {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateZ(50px);
    width: 100px;
    height: 100px;
    z-index: 3;
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
    box-shadow: var(--shadow-xl), 0 0 30px rgba(20, 184, 166, 0.4);
}

.memory-node:nth-child(2) {
    top: 25%;
    left: 65%;
    animation-delay: 0.5s;
    transform: translateZ(20px);
    z-index: 2;
}

.memory-node:nth-child(3) {
    top: 65%;
    left: 25%;
    animation-delay: 1s;
    transform: translateZ(30px);
    z-index: 2;
}

.memory-connection {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='500' height='500' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M250,250 L325,125 M250,250 L125,325' stroke='%236366F1' stroke-width='2' stroke-dasharray='5,5' /%3E%3C/svg%3E");
    background-size: contain;
    opacity: 0.7;
    animation: rotate 60s infinite linear;
    transform-origin: center;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.6);
    }
    70% {
        box-shadow: 0 0 0 20px rgba(99, 102, 241, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateZ(0);
    }
    50% {
        transform: translateY(-20px) translateZ(0);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes shine {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

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

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--border-radius-lg);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-medium) var(--transition-timing-ease);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    font-size: var(--font-size-base);
    letter-spacing: 0.02em;
    box-shadow: var(--shadow);
    border: none;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: all var(--transition-medium);
}

.btn:hover::before {
    left: 100%;
}

.btn.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn.primary:active {
    transform: translateY(1px);
}

.btn.secondary {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    color: var(--dark-color);
    border: 1px solid var(--glass-border);
}

.btn.secondary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn.secondary:active {
    transform: translateY(1px);
}

.btn.accent {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(244, 63, 94, 0.3);
}

.btn.accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(244, 63, 94, 0.4);
}

.btn i {
    margin-left: var(--spacing-2);
}

/* Section Styles */
section {
    padding: var(--spacing-24) 0;
    position: relative;
    overflow: hidden;
}

section::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.05;
    z-index: 0;
    pointer-events: none;
}

section .container {
    position: relative;
    z-index: 1;
}

.section-title-container {
    text-align: center;
    margin-bottom: var(--spacing-16);
    position: relative;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-2);
    display: block;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-6);
    color: var(--dark-color);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius-full);
}

.section-description {
    max-width: 700px;
    margin: 0 auto;
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    line-height: var(--line-height-relaxed);
}

/* About Section */
.about {
    background-color: var(--light-color);
}

.about::before {
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%236366F1' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.about-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-16);
    margin-top: var(--spacing-12);
}

.about-text {
    flex: 1;
    animation: fadeInRight 1s var(--transition-timing-ease) both;
    animation-delay: 0.3s;
}

.about-text p {
    margin-bottom: var(--spacing-6);
    font-size: var(--font-size-lg);
    color: var(--gray-700);
    line-height: var(--line-height-relaxed);
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-image {
    flex: 1;
    display: flex;
    justify-content: center;
    animation: fadeInLeft 1s var(--transition-timing-ease) both;
    animation-delay: 0.3s;
    position: relative;
}

.about-image::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-bg), var(--secondary-bg));
    border-radius: var(--border-radius-2xl);
    transform: rotate(-3deg) scale(0.95);
    z-index: -1;
    opacity: 0.7;
}

.about-image img {
    max-width: 450px;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    transform: translateZ(0);
    transition: all var(--transition-medium) var(--transition-timing-ease);
}

.about-image:hover img {
    transform: scale(1.02) translateZ(0);
    box-shadow: var(--shadow-2xl);
}

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

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

/* Projects Section */
.projects {
    background-color: var(--light-color-100);
}

.projects::before {
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%2314B8A6' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
}

.project-cards {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-10);
    justify-content: center;
    margin-top: var(--spacing-12);
}

.project-card {
    background-color: white;
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-10);
    width: 100%;
    max-width: 400px;
    transition: all var(--transition-medium) var(--transition-timing-ease);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.project-icon {
    margin-bottom: var(--spacing-6);
    display: inline-block;
    padding: var(--spacing-4);
    background-color: var(--primary-bg);
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-medium) var(--transition-timing-ease);
}

.project-card:hover .project-icon {
    transform: scale(1.1) rotate(5deg);
}

.project-icon img {
    width: 70px;
    height: 70px;
    filter: drop-shadow(0 4px 6px rgba(99, 102, 241, 0.2));
}

.project-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-4);
    color: var(--dark-color);
    position: relative;
    display: inline-block;
}

.project-description {
    color: var(--gray-600);
    margin-bottom: var(--spacing-8);
    line-height: var(--line-height-relaxed);
}

.project-features {
    margin-bottom: var(--spacing-8);
    background-color: var(--light-color);
    padding: var(--spacing-6);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--gray-200);
}

.feature {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-4);
}

.feature:last-child {
    margin-bottom: 0;
}

.feature i {
    color: var(--primary-color);
    margin-right: var(--spacing-4);
    font-size: var(--font-size-xl);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature span {
    font-weight: var(--font-weight-medium);
    color: var(--gray-700);
}

/* Team Section */
.team {
    background-color: var(--light-color);
}

.team::before {
    background-image: url("data:image/svg+xml,%3Csvg width='84' height='48' viewBox='0 0 84 48' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h12v6H0V0zm28 8h12v6H28V8zm14-8h12v6H42V0zm14 0h12v6H56V0zm0 8h12v6H56V8zM42 8h12v6H42V8zm0 16h12v6H42v-6zm14-8h12v6H56v-6zm14 0h12v6H70v-6zm0-16h12v6H70V0zM28 32h12v6H28v-6zM14 16h12v6H14v-6zM0 24h12v6H0v-6zm0 8h12v6H0v-6zm14 0h12v6H14v-6zm14 8h12v6H28v-6zm-14 0h12v6H14v-6zm28 0h12v6H42v-6zm14-8h12v6H56v-6zm0-8h12v6H56v-6zm14 8h12v6H70v-6zm0 8h12v6H70v-6zM14 24h12v6H14v-6zm14-8h12v6H28v-6zM14 8h12v6H14V8zM0 8h12v6H0V8z' fill='%236366F1' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
}

.team-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-16);
    color: var(--gray-600);
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-10);
    margin-bottom: var(--spacing-20);
}

.team-member {
    text-align: center;
    background-color: white;
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium) var(--transition-timing-ease);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

.team-member::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity var(--transition-medium) var(--transition-timing-ease);
}

.team-member:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.team-member:hover::before {
    opacity: 1;
}

.member-avatar {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto var(--spacing-6);
    background-color: var(--gray-200);
    border: 5px solid var(--light-color);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium) var(--transition-timing-ease);
}

.team-member:hover .member-avatar {
    border-color: var(--primary-bg);
    transform: scale(1.05);
}

.member-name {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-2);
    color: var(--dark-color);
}

.member-role {
    color: var(--primary-color);
    margin-bottom: var(--spacing-6);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.member-social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-4);
}

.member-social a {
    color: var(--gray-500);
    transition: all var(--transition) var(--transition-timing-ease);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: var(--gray-100);
}

.member-social a:hover {
    color: white;
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.join-team {
    text-align: center;
    padding: var(--spacing-12);
    background: linear-gradient(135deg, var(--primary-bg), var(--secondary-bg));
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.join-team::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='20' height='20' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%236366F1' fill-opacity='0.05' fill-rule='evenodd'%3E%3Ccircle cx='3' cy='3' r='3'/%3E%3Ccircle cx='13' cy='13' r='3'/%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
    z-index: 0;
}

.join-team > * {
    position: relative;
    z-index: 1;
}

.join-team h3 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-6);
    color: var(--dark-color);
}

.join-team p {
    margin-bottom: var(--spacing-8);
    color: var(--gray-600);
    font-size: var(--font-size-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: var(--line-height-relaxed);
}

/* Contact Section */
.contact {
    background-color: var(--light-color);
    position: relative;
}

.contact::before {
    background-image: url("data:image/svg+xml,%3Csvg width='52' height='26' viewBox='0 0 52 26' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2314B8A6' fill-opacity='0.05'%3E%3Cpath d='M10 10c0-2.21-1.79-4-4-4-3.314 0-6-2.686-6-6h2c0 2.21 1.79 4 4 4 3.314 0 6 2.686 6 6 0 2.21 1.79 4 4 4 3.314 0 6 2.686 6 6 0 2.21 1.79 4 4 4 3.314 0 6 2.686 6 6h-2c0-2.21-1.79-4-4-4-3.314 0-6-2.686-6-6 0-2.21-1.79-4-4-4-3.314 0-6-2.686-6-6 0-2.21-1.79-4-4-4-3.314 0-6-2.686-6-6h2c0 2.21 1.79 4 4 4 3.314 0 6 2.686 6 6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.contact-content {
    display: flex;
    gap: var(--spacing-16);
    margin-top: var(--spacing-12);
}

.contact-info, .contact-form {
    flex: 1;
}

.contact-info {
    animation: fadeInRight 1s var(--transition-timing-ease) both;
    animation-delay: 0.3s;
}

.contact-form {
    animation: fadeInLeft 1s var(--transition-timing-ease) both;
    animation-delay: 0.3s;
}

.contact-info p {
    font-size: var(--font-size-lg);
    color: var(--gray-700);
    margin-bottom: var(--spacing-8);
    line-height: var(--line-height-relaxed);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
    background-color: white;
    padding: var(--spacing-8);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
}

.contact-method {
    display: flex;
    align-items: center;
    transition: all var(--transition) var(--transition-timing-ease);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--border-radius-lg);
}

.contact-method:hover {
    background-color: var(--primary-bg);
    transform: translateX(5px);
}

.contact-method i {
    color: var(--primary-color);
    margin-right: var(--spacing-4);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
}

.contact-method a {
    color: var(--gray-700);
    font-weight: var(--font-weight-medium);
    transition: color var(--transition) var(--transition-timing-ease);
}

.contact-method:hover a {
    color: var(--primary-color);
}

.contact-form form {
    background-color: white;
    padding: var(--spacing-8);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
}

.form-group {
    margin-bottom: var(--spacing-6);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-3);
    font-weight: var(--font-weight-medium);
    color: var(--gray-700);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: var(--spacing-4);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-lg);
    font-family: var(--font-family);
    transition: all var(--transition) var(--transition-timing-ease);
    background-color: var(--light-color);
    color: var(--gray-700);
    font-size: var(--font-size-base);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-bg);
    background-color: white;
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.success-message {
    background-color: rgba(20, 184, 166, 0.1);
    color: var(--secondary-dark);
    padding: var(--spacing-4);
    border-radius: var(--border-radius-lg);
    margin-top: var(--spacing-6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-medium);
    transition: opacity var(--transition-medium) var(--transition-timing-ease);
    border: 1px solid var(--secondary-light);
}

.success-message i {
    color: var(--secondary-color);
    margin-right: var(--spacing-3);
    font-size: var(--font-size-xl);
}

/* Footer */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: var(--spacing-20) 0 var(--spacing-8);
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5z' fill='%23FFFFFF' fill-opacity='0.03' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.5;
    z-index: 0;
}

footer .container {
    position: relative;
    z-index: 1;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-16);
}

.footer-logo {
    flex: 1;
}

.footer-logo img {
    height: 50px;
    margin-bottom: var(--spacing-8);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.footer-logo p {
    color: var(--gray-400);
    max-width: 300px;
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-6);
}

.footer-links {
    display: flex;
    gap: var(--spacing-20);
}

.footer-nav, .footer-social {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.footer-nav h4, .footer-social h4 {
    margin-bottom: var(--spacing-6);
    color: white;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    position: relative;
    padding-bottom: var(--spacing-3);
}

.footer-nav h4::after, .footer-social h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius-full);
}

.footer-nav a, .footer-social a {
    color: var(--gray-400);
    transition: all var(--transition) var(--transition-timing-ease);
    display: inline-block;
    padding: var(--spacing-1) 0;
}

.footer-nav a:hover, .footer-social a:hover {
    color: white;
    transform: translateX(5px);
}

.footer-social a i {
    margin-right: var(--spacing-2);
    width: 20px;
    text-align: center;
}

.footer-bottom {
    padding-top: var(--spacing-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--gray-500);
    font-size: var(--font-size-sm);
}

/* Responsive Styles */
@media (max-width: 1280px) {
    .hero-title {
        font-size: var(--font-size-5xl);
    }

    .memory-visualization {
        width: 400px;
        height: 400px;
    }

    .about-image img {
        max-width: 400px;
    }
}

@media (max-width: 1024px) {
    :root {
        --container-padding: 2rem;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-lg);
        max-width: 100%;
    }

    .memory-visualization {
        width: 350px;
        height: 350px;
    }

    .about-content {
        gap: var(--spacing-10);
    }

    .about-image img {
        max-width: 350px;
    }

    .project-cards {
        gap: var(--spacing-8);
    }

    .team-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    .contact-content {
        gap: var(--spacing-10);
    }

    .footer-links {
        gap: var(--spacing-12);
    }
}

@media (max-width: 900px) {
    .hero {
        padding: 140px 0 80px;
    }

    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero-content {
        margin-bottom: var(--spacing-12);
        max-width: 100%;
    }

    .hero-title::after {
        left: 50%;
        transform: translateX(-50%);
    }

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

    .memory-visualization {
        width: 400px;
        height: 400px;
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1.5rem;
    }

    header {
        background-color: var(--light-color);
        box-shadow: var(--shadow-md);
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: white;
        padding: 0;
        box-shadow: var(--shadow-lg);
        z-index: var(--z-30);
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        padding: var(--spacing-4) 0;
    }

    .nav-link {
        padding: var(--spacing-4) var(--container-padding);
        border-bottom: 1px solid var(--gray-200);
        width: 100%;
        text-align: left;
    }

    .nav-link:last-child {
        border-bottom: none;
    }

    .nav-link::after {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .section-description {
        font-size: var(--font-size-base);
    }

    .about-content {
        flex-direction: column;
        gap: var(--spacing-12);
    }

    .about-text {
        order: 2;
    }

    .about-image {
        order: 1;
    }

    .about-image::before {
        transform: rotate(0) scale(0.95);
    }

    .project-card {
        max-width: 100%;
    }

    .team-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-8);
    }

    .contact-content {
        flex-direction: column;
        gap: var(--spacing-12);
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-logo {
        margin-bottom: var(--spacing-12);
    }

    .footer-logo p {
        max-width: 100%;
    }

    .footer-links {
        justify-content: space-around;
        width: 100%;
    }

    .footer-nav h4::after, .footer-social h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 120px 0 60px;
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-4);
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .memory-visualization {
        width: 280px;
        height: 280px;
    }

    .memory-node {
        width: 60px;
        height: 60px;
    }

    .memory-node:nth-child(1) {
        width: 80px;
        height: 80px;
    }

    .section-title-container {
        margin-bottom: var(--spacing-10);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .section-subtitle {
        font-size: var(--font-size-base);
    }

    .about-image img {
        max-width: 100%;
    }

    .team-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-10);
        align-items: center;
    }

    .footer-nav, .footer-social {
        width: 100%;
        align-items: center;
    }
}

@media (max-width: 375px) {
    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .memory-visualization {
        width: 240px;
        height: 240px;
    }

    .memory-node {
        width: 50px;
        height: 50px;
    }

    .memory-node:nth-child(1) {
        width: 70px;
        height: 70px;
    }

    .project-icon img {
        width: 50px;
        height: 50px;
    }

    .contact-methods, .contact-form form {
        padding: var(--spacing-6);
    }
}