/* ===========================
   Modern Portfolio CSS - UNIQUE DESIGN
   =========================== */

:root {
    /* Color Palette - Gray/Silver Theme */
    --bg-primary: #0a0e14;
    --bg-secondary: #12161d;
    --bg-card: #1a1f28;
    --header-bg: #0f1419;

    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;

    --accent-primary: #9ca3af;
    --accent-secondary: #6b7280;
    --accent-tertiary: #06b6d4;
    --accent-green: #10b981;
    --accent-orange: #f59e0b;

    --gradient-primary: linear-gradient(135deg, #9ca3af 0%, #6b7280 100%);
    --gradient-secondary: linear-gradient(135deg, #374151 0%, #1f2937 100%);

    --border-color: #30363d;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.8);

    /* Typography */
    --font-family: 'Poppins', sans-serif;
    --font-mono: 'Fira Code', monospace;

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

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===========================
   Reset & Base Styles
   =========================== */

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

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

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 10% 20%, rgba(156, 163, 175, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(107, 114, 128, 0.05) 0%, transparent 40%);
    pointer-events: none;
    z-index: -1;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* ===========================
   Header - COMPLETELY NEW DESIGN
   =========================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 20, 0.95);
    backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(156, 163, 175, 0.1);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.375rem;
    font-weight: 800;
    text-decoration: none;
    transition: var(--transition);
    font-family: var(--font-mono);
}

.logo:hover {
    transform: translateX(5px);
}

.logo-icon {
    color: var(--accent-primary);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        filter: drop-shadow(0 0 10px rgba(156, 163, 175, 0.5));
    }
    to {
        filter: drop-shadow(0 0 20px rgba(156, 163, 175, 0.8));
    }
}

.logo-text {
    color: var(--text-primary);
    letter-spacing: -1px;
}

.nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.nav-list {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
    letter-spacing: 0.5px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 100%;
    height: 3px;
    background: var(--accent-primary);
    transition: var(--transition);
    border-radius: 3px 3px 0 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

.header-right {
    display: flex;
    align-items: center;
}

.header-social-links {
    display: none;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--accent-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(10, 14, 20, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    transform: translateY(-100%);
    transition: transform 0.3s ease-in-out;
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
}

.mobile-nav ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.mobile-nav-link {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 1.125rem;
    transition: var(--transition);
    display: block;
    padding: var(--spacing-sm);
    border-left: 3px solid transparent;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--accent-primary);
    border-left-color: var(--accent-primary);
}

/* ===========================
   Hero Section - CENTERED DESIGN
   =========================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(70px + var(--spacing-3xl)) 0 var(--spacing-3xl);
    position: relative;
    overflow: hidden;
}

.hero-background {
    display: none;
}

.hero-content {
    text-align: center;
    max-width: 900px;
}

.hero-image {
    margin: 0 auto var(--spacing-xl);
}

.image-wrapper {
    position: relative;
    display: inline-block;
}

.profile-img {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--accent-primary);
    box-shadow: 0 0 40px rgba(156, 163, 175, 0.3);
}

.image-border {
    display: none;
}

.hero-text {
    max-width: 700px;
    margin: 0 auto;
}

.hero-greeting {
    display: inline-block;
    font-size: 1rem;
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===========================
   Buttons - NEW STYLE
   =========================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: 12px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-primary);
    box-shadow: 0 4px 20px rgba(156, 163, 175, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 30px rgba(156, 163, 175, 0.5);
}

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

.btn-outline:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
    transform: translateY(-3px);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--accent-primary);
    transform: translateY(-3px);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ===========================
   Section Headers
   =========================== */

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* ===========================
   Skills Section - UNIQUE HORIZONTAL DESIGN
   =========================== */

.skills {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-primary);
}

.skills-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.skill-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: 16px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(156, 163, 175, 0.1);
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.skill-card::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transform-origin: top;
    transition: var(--transition);
}

.skill-card:hover {
    transform: translateX(10px);
    box-shadow: -10px 10px 30px rgba(0, 0, 0, 0.5);
    border-color: var(--accent-primary);
}

.skill-card:hover::after {
    transform: scaleY(1);
}

.skill-number {
    font-size: 4rem;
    font-weight: 900;
    color: rgba(156, 163, 175, 0.1);
    line-height: 1;
    font-family: var(--font-mono);
    min-width: 80px;
}

.skill-icon {
    width: 70px;
    height: 70px;
    flex-shrink: 0;
    color: var(--accent-primary);
}

.skill-content {
    flex: 1;
}

.skill-title {
    font-size: 1.625rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.skill-description {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.skill-description strong {
    color: var(--accent-primary);
    font-weight: 600;
}

/* ===========================
   Projects Section
   =========================== */

.projects {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    background: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(156, 163, 175, 0.1);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.project-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1f28 0%, #12161d 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.project-image img {
    max-width: 80%;
    max-height: 80%;
    width: auto;
    height: auto;
    object-fit: contain;
    transition: var(--transition);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-overlay {
    display: none;
}

.project-link {
    display: none;
}

.project-content {
    padding: var(--spacing-lg);
}

.project-tags {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.tag {
    padding: 0.4rem 0.9rem;
    background: rgba(156, 163, 175, 0.1);
    color: var(--accent-primary);
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 600;
    border: 1px solid rgba(156, 163, 175, 0.2);
}

.project-title {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.project-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===========================
   Contact Section - UNIQUE CENTERED DESIGN
   =========================== */

.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-primary);
}

.contact-layout {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
    max-width: 800px;
    margin: 0 auto;
}

.contact-form-wrapper {
    background: var(--bg-card);
    padding: var(--spacing-2xl);
    border-radius: 20px;
    border: 1px solid rgba(156, 163, 175, 0.1);
    order: 1;
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group:nth-child(3),
.form-group:nth-child(4) {
    grid-column: 1 / -1;
}

.contact-form button[type="submit"] {
    grid-column: 1 / -1;
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9375rem;
}

.form-group input,
.form-group textarea {
    padding: 1rem 1.25rem;
    background: var(--bg-secondary);
    border: 2px solid rgba(156, 163, 175, 0.1);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 4px rgba(156, 163, 175, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 160px;
}

.contact-info {
    order: 2;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.contact-text {
    grid-column: 1 / -1;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    font-size: 1.0625rem;
}

.contact-methods {
    display: contents;
}

.contact-item {
    background: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: 12px;
    border: 1px solid rgba(156, 163, 175, 0.1);
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.contact-item svg {
    flex-shrink: 0;
    color: var(--accent-primary);
    width: 32px;
    height: 32px;
    margin-top: 0.25rem;
}

.contact-item > div {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.contact-label {
    display: block;
    font-size: 0.8125rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 0.25rem;
    font-weight: 700;
}

.contact-value {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.875rem;
    transition: var(--transition);
    word-break: break-all;
    line-height: 1.5;
}

.contact-value:hover {
    color: var(--accent-primary);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    grid-column: 1 / -1;
    margin-top: var(--spacing-md);
}

.social-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid rgba(156, 163, 175, 0.1);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--accent-primary);
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 20px rgba(156, 163, 175, 0.3);
}

.social-icon {
    width: 22px;
    height: 22px;
}

/* ===========================
   Footer - MINIMALIST DESIGN
   =========================== */

.footer {
    background: var(--header-bg);
    padding: var(--spacing-xl) 0;
    border-top: 1px solid rgba(156, 163, 175, 0.1);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.footer-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.footer-copyright {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(156, 163, 175, 0.1);
}

/* ===========================
   Responsive Design
   =========================== */

@media (max-width: 968px) {
    .container {
        padding: 0 var(--spacing-lg);
    }

    .skill-card {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .skill-number {
        font-size: 3rem;
        min-width: auto;
    }

    .contact-form {
        grid-template-columns: 1fr;
    }

    .form-group:nth-child(3),
    .form-group:nth-child(4) {
        grid-column: auto;
    }

    .contact-form button[type="submit"] {
        grid-column: auto;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }

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

    .mobile-menu {
        display: block;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .profile-img {
        width: 180px;
        height: 180px;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .skill-card {
        padding: var(--spacing-lg);
    }

    .skill-number {
        font-size: 2.5rem;
    }

    .skill-icon {
        width: 50px;
        height: 50px;
    }

    .contact-form-wrapper {
        padding: var(--spacing-lg);
    }
}