/* ============================================
   MUHAMMAD ANEES - PORTFOLIO STYLES
   ============================================ */

/* --- CSS Variables --- */
:root {
    --primary: #1D9E75;
    --primary-dark: #178a65;
    --primary-light: #24b889;
    --primary-bg: rgba(29, 158, 117, 0.08);
    --primary-border: rgba(29, 158, 117, 0.25);
    --bg: #f8fafb;
    --bg-alt: #ffffff;
    --bg-card: #ffffff;
    --text: #1a1a2e;
    --text-secondary: #555770;
    --text-muted: #8890a4;
    --border: #e4e7ec;
    --border-light: #f0f2f5;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* --- Utility --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius-full);
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    gap: 8px;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(29, 158, 117, 0.35);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(29, 158, 117, 0.35);
}

/* --- Reveal Animation --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.5px;
}

.logo-dot {
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.bar {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

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

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 24px 60px;
    background: linear-gradient(160deg, #f0faf6 0%, var(--bg) 40%, #f8fafb 100%);
    overflow: hidden;
}

.hero-container {
    max-width: 1120px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

.internship-badge {
    background: rgba(29, 158, 117, 0.12);
    color: var(--primary);
    border: 1px solid var(--primary-border);
    animation: pulse-badge 2.5s ease-in-out infinite;
}

@keyframes pulse-badge {
    0%, 100% { box-shadow: 0 0 0 0 rgba(29, 158, 117, 0.25); }
    50% { box-shadow: 0 0 0 8px rgba(29, 158, 117, 0); }
}

.location-badge {
    background: var(--bg-alt);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.hero-name {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 16px;
    color: var(--text);
}

.hero-name-highlight {
    color: var(--primary);
}

.hero-role {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 16px;
}

.hero-bio {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 520px;
    margin-bottom: 32px;
}

.hero-cta {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.hero-avatar {
    position: relative;
    z-index: 2;
}

.avatar-placeholder {
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 60px rgba(29, 158, 117, 0.25);
}

.avatar-placeholder span {
    font-size: 5rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -2px;
}

.avatar-placeholder {
    overflow: hidden;
}
.avatar-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.avatar-placeholder span {
    display: none;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    z-index: 1;
}

.hero-orb-1 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(29, 158, 117, 0.12) 0%, transparent 70%);
    top: -20px;
    right: -40px;
    animation: float 6s ease-in-out infinite;
}

.hero-orb-2 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(29, 158, 117, 0.08) 0%, transparent 70%);
    bottom: 0;
    left: -20px;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(10px, -15px); }
}

/* ============================================
   SECTIONS (Shared)
   ============================================ */
section {
    padding: 100px 24px;
}

.section-container {
    max-width: 1120px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
    text-align: center;
    letter-spacing: -1px;
    margin-bottom: 12px;
    color: var(--text);
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 56px;
}

/* ============================================
   SKILLS
   ============================================ */
.skills {
    background: var(--bg-alt);
}

.skills-category {
    margin-bottom: 40px;
}

.skills-category:last-child {
    margin-bottom: 0;
}

.skills-category-label {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--primary);
    margin-bottom: 20px;
    padding-left: 4px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}

.skill-card {
    background: var(--bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    transition: var(--transition);
}

.skill-card:hover {
    border-color: var(--primary-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.skill-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.skill-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
}

.skill-level {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 3px 10px;
    border-radius: var(--radius-full);
}

.skill-level.strong {
    background: rgba(29, 158, 117, 0.12);
    color: var(--primary);
}

.skill-level.proficient {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.skill-level.familiar {
    background: rgba(245, 158, 11, 0.1);
    color: #d97706;
}

/* ============================================
   PROJECTS
   ============================================ */
.projects {
    background: var(--bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
    position: relative;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover {
    border-color: var(--primary-border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}

.project-card:hover::before {
    opacity: 1;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.project-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.project-links {
    display: flex;
    gap: 10px;
}

.project-link-icon {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.project-link-icon:hover {
    color: var(--primary);
    border-color: var(--primary-border);
    background: var(--primary-bg);
}

.project-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text);
}

.project-description {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.65;
    margin-bottom: 20px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 600;
    background: var(--bg);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

/* ============================================
   ABOUT
   ============================================ */
.about {
    background: var(--bg-alt);
}

.about-content {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 48px;
    align-items: start;
}

.about-text p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 18px;
}

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

.about-text strong {
    color: var(--text);
    font-weight: 600;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.stat-card {
    background: var(--bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition);
}

.stat-card:hover {
    border-color: var(--primary-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    min-width: 60px;
    text-align: center;
}

.stat-label {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    background: var(--bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    background: var(--primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.contact-label {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.contact-value {
    font-size: 0.95rem;
    color: var(--text);
    font-weight: 500;
}

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

.status-available {
    color: var(--primary);
    font-weight: 600;
}

/* Contact Form */
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 0.95rem;
    color: var(--text);
    background: var(--bg);
    transition: var(--transition);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(29, 158, 117, 0.12);
}

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

.btn-submit {
    width: 100%;
    border: none;
    font-family: var(--font);
    font-size: 1rem;
    padding: 14px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--bg-alt);
    border-top: 1px solid var(--border-light);
    padding: 32px 24px;
}

.footer-container {
    max-width: 1120px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.social-link:hover {
    color: var(--primary);
    border-color: var(--primary-border);
    background: var(--primary-bg);
}

/* ============================================
   RESPONSIVE — Tablet (max-width: 900px)
   ============================================ */
@media (max-width: 900px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-name {
        font-size: 3rem;
    }

    .hero-bio {
        max-width: 100%;
    }

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

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

    .hero-visual {
        order: -1;
    }

    .avatar-placeholder {
        width: 200px;
        height: 200px;
    }

    .avatar-placeholder span {
        font-size: 3.5rem;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

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

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

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

/* ============================================
   RESPONSIVE — Mobile (max-width: 600px)
   ============================================ */
@media (max-width: 600px) {
    .nav-links {
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(16px);
        flex-direction: column;
        padding: 20px 24px;
        gap: 4px;
        border-bottom: 1px solid var(--border-light);
        box-shadow: var(--shadow-md);
        transform: translateY(-120%);
        opacity: 0;
        transition: var(--transition);
        pointer-events: none;
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .hamburger {
        display: flex;
    }

    .nav-link {
        width: 100%;
        text-align: center;
        padding: 12px 18px;
        border-radius: var(--radius-sm);
    }

    section {
        padding: 70px 20px;
    }

    .section-title {
        font-size: 1.9rem;
    }

    .section-subtitle {
        font-size: 0.95rem;
        margin-bottom: 36px;
    }

    .hero {
        padding: 100px 20px 50px;
    }

    .hero-name {
        font-size: 2.4rem;
        letter-spacing: -1px;
    }

    .hero-role {
        font-size: 1.05rem;
    }

    .avatar-placeholder {
        width: 160px;
        height: 160px;
    }

    .avatar-placeholder span {
        font-size: 2.8rem;
    }

    .hero-orb-1 {
        width: 200px;
        height: 200px;
    }

    .hero-orb-2 {
        width: 140px;
        height: 140px;
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .skill-card {
        padding: 18px 16px;
    }

    .skill-icon {
        width: 40px;
        height: 40px;
    }

    .skill-icon svg {
        width: 24px;
        height: 24px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 20px;
    }

    .contact-form {
        padding: 24px;
    }

    .footer-container {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .badge {
        font-size: 0.72rem;
        padding: 5px 12px;
    }
}