:root {
    --color-dark-blue: #1a1a3d;
    --color-purple: #4a2c6e;
    --color-pink: #e91e8c;
    --color-light-pink: #ff6eb4;
    --color-bg: #0f0f1a;
    --color-surface: #1a1a2e;
    --color-surface-light: #252540;
    --color-text: #e8e8f0;
    --color-text-muted: #9999b3;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--color-light-pink);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-pink);
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ========== NAVBAR ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: background-color var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
    background-color: rgba(15, 15, 26, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.nav-logo:hover {
    color: var(--color-light-pink);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition);
}

.nav-links a:hover {
    color: var(--color-text);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ========== HERO ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 6rem 1.5rem 4rem;
    background: linear-gradient(135deg, var(--color-dark-blue) 0%, var(--color-purple) 50%, var(--color-pink) 100%);
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
    position: relative;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease;
}

.hero-tagline {
    font-size: clamp(1rem, 3vw, 1.25rem);
    color: rgba(255, 255, 255, 0.8);
    font-weight: 300;
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
    border: none;
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--color-purple), var(--color-pink));
    color: #fff;
    box-shadow: 0 4px 15px rgba(233, 30, 140, 0.3);
}

.btn-primary:hover {
    color: #fff;
    box-shadow: 0 6px 25px rgba(233, 30, 140, 0.4);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.05);
}

/* ========== SECTIONS ========== */
.section {
    padding: 5rem 0;
}

.section.animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.section-alt {
    background-color: var(--color-surface);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--color-text), var(--color-light-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-text {
    color: var(--color-text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    line-height: 1.8;
}

/* ========== PROJECT CARD ========== */
.project-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.project-card:hover {
    border-color: rgba(233, 30, 140, 0.3);
    box-shadow: 0 8px 40px rgba(233, 30, 140, 0.1);
}

.project-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.project-name {
    font-size: 1.5rem;
    font-weight: 700;
}

.project-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--color-purple), var(--color-pink));
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-description {
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.project-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-features span {
    font-size: 0.8rem;
    padding: 0.35rem 0.85rem;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--color-text-muted);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

/* ========== SUBSCRIBE FORM ========== */
.subscribe-form {
    margin-top: 2rem;
    max-width: 500px;
}

.form-group {
    display: flex;
    gap: 0.75rem;
}

.form-group input[type="email"] {
    flex: 1;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text);
    font-size: 0.95rem;
    font-family: var(--font-family);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input[type="email"]::placeholder {
    color: var(--color-text-muted);
}

.form-group input[type="email"]:focus {
    border-color: var(--color-purple);
    box-shadow: 0 0 0 3px rgba(74, 44, 110, 0.3);
}

.form-message {
    margin-top: 0.75rem;
    font-size: 0.9rem;
    min-height: 1.5rem;
}

.form-message.success {
    color: #4ade80;
}

.form-message.error {
    color: #f87171;
}

/* ========== FOOTER ========== */
.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 2.5rem 0;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--color-text);
}

.footer-copy {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-surface);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        gap: 1.5rem;
        transition: right var(--transition);
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.5);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 1.1rem;
    }

    .hero {
        min-height: 80vh;
        padding: 5rem 1.5rem 3rem;
    }

    .section {
        padding: 3.5rem 0;
    }

    .project-card {
        padding: 1.5rem;
    }

    .form-group {
        flex-direction: column;
    }

    .form-group input[type="email"],
    .form-group .btn {
        width: 100%;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.25rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .project-features {
        gap: 0.4rem;
    }

    .project-features span {
        font-size: 0.75rem;
        padding: 0.25rem 0.6rem;
    }
}