/* ========================================
   tizno Portfolio - CSS Styles
   ======================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #16404D;
    --color-secondary: #F5F5F5;
    --color-accent: #000000;
    --color-text-dark: #16404D;
    --color-text-light: #F5F5F5;
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Header */
    --header-height: 64px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.6s ease-in-out;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

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

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

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--color-text-dark);
    background-color: var(--color-secondary);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   Header
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    background-color: transparent;
    transition: background-color var(--transition-medium), box-shadow var(--transition-medium);
}

.header.scrolled {
    background-color: var(--color-primary);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-light);
    letter-spacing: -0.5px;
}

.logo:hover {
    opacity: 0.8;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-text-light);
    font-size: 0.95rem;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--color-text-light);
    transition: width var(--transition-fast), left var(--transition-fast);
}

.nav-link:hover::after {
    width: 100%;
    left: 0;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: var(--color-primary);
    position: relative;
    padding: var(--header-height) var(--spacing-md) var(--spacing-lg);
}

.hero-content {
    text-align: center;
    z-index: 1;
}

.hero-title-line {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 1em;
    margin-bottom: var(--spacing-sm);
}

.hero-intro {
    font-size: clamp(2rem, 5vw, 4rem);
    color: var(--color-text-light);
    opacity: 0.85;
    font-weight: 400;
    white-space: nowrap;
    flex-shrink: 0;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    color: var(--color-text-light);
    font-weight: 600;
    line-height: 1.1;
    transition: font-family 0.3s ease-out;
    white-space: nowrap;
    min-width: 250px;
    display: inline-block;
    text-align: left;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-light);
    opacity: 0.8;
    margin-bottom: var(--spacing-lg);
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator span {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-text-light);
    border-radius: 12px;
    position: relative;
    opacity: 0.6;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background-color: var(--color-text-light);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(12px);
    }
}

/* ========================================
   Projects Section
   ======================================== */
.projects {
    background-color: var(--color-secondary);
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--color-text-dark);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.section-title--light {
    color: var(--color-text-light);
    text-align: left;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-dark);
    opacity: 0.7;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.project-card {
    background-color: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(22, 64, 77, 0.15);
}

.project-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, #2a5a6b 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    font-size: 1rem;
    opacity: 0.9;
}

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

.project-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-xs);
}

.project-description {
    font-size: 0.95rem;
    color: var(--color-text-dark);
    opacity: 0.7;
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

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

.tag {
    padding: 0.25rem 0.75rem;
    background-color: var(--color-secondary);
    color: var(--color-primary);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.project-link {
    display: inline-block;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.project-link:hover {
    opacity: 0.7;
}

/* ========================================
   Story Section
   ======================================== */
.story {
    background-color: var(--color-primary);
    padding: var(--spacing-xl) 0;
}

.story-grid {
    display: grid;
    grid-template-columns: 60% 40%;
    gap: var(--spacing-lg);
    align-items: center;
}

.story-content {
    padding-right: var(--spacing-md);
}

.story-text {
    font-size: 1.1rem;
    color: var(--color-text-light);
    opacity: 0.9;
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.story-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.stat {
    text-align: left;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-light);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-light);
    opacity: 0.7;
}

.story-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.story-image-placeholder {
    width: 100%;
    max-width: 350px;
    aspect-ratio: 3 / 4;
    background: linear-gradient(135deg, #2a5a6b 0%, #1a4a5a 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    font-size: 1rem;
    opacity: 0.9;
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    background-color: var(--color-secondary);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.contact-content {
    margin-top: var(--spacing-lg);
}

.contact-email {
    display: inline-block;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.contact-email::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-medium);
}

.contact-email:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: var(--color-text-light);
    transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.social-link:hover {
    transform: translateY(-4px);
    background-color: var(--color-accent);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background-color: var(--color-primary);
    padding: var(--spacing-md) 0;
    text-align: center;
}

.footer p {
    color: var(--color-text-light);
    opacity: 0.7;
    font-size: 0.9rem;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 992px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .story-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .story-content {
        padding-right: 0;
        order: 2;
    }
    
    .story-image {
        order: 1;
    }
    
    .section-title--light {
        text-align: center;
    }
    
    .story-stats {
        justify-content: center;
    }
    
    .stat {
        text-align: center;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .nav-links {
        gap: var(--spacing-sm);
    }
    
    .nav-link {
        font-size: 0.85rem;
        padding: var(--spacing-xs);
    }
    
    .hero-title-line {
        flex-direction: column;
        gap: 0.1em;
    }
    
    .hero-intro {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }
    
    .hero-title {
        font-size: clamp(2.5rem, 12vw, 4rem);
    }
    
    .story-stats {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }
    
    .social-links {
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.25rem;
    }
    
    .btn {
        padding: 0.875rem 2rem;
        font-size: 0.9rem;
    }
    
    .project-content {
        padding: var(--spacing-sm);
    }
    
    .project-title {
        font-size: 1.25rem;
    }
}

/* ========================================
   Animations & Effects
   ======================================== */

/* Fade In Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    animation: fadeIn 1s ease-out;
}

/* Font Morphing Animation Classes - Diverse styles */
.font-courier { font-family: 'Courier Prime', monospace !important; }
.font-playfair { font-family: 'Playfair Display', serif !important; }
.font-space { font-family: 'Space Grotesk', sans-serif !important; }
.font-poppins { font-family: 'Poppins', sans-serif !important; }
.font-ibm { font-family: 'IBM Plex Mono', monospace !important; }
.font-libre { font-family: 'Libre Baskerville', serif !important; }
.font-jetbrains { font-family: 'JetBrains Mono', monospace !important; }
.font-pacifico { font-family: 'Pacifico', cursive !important; }
.font-dancing { font-family: 'Dancing Script', cursive !important; }
.font-caveat { font-family: 'Caveat', cursive !important; }
.font-lobster { font-family: 'Lobster', cursive !important; }
.font-marker { font-family: 'Permanent Marker', cursive !important; }
.font-oswald { font-family: 'Oswald', sans-serif !important; text-transform: uppercase; }
.font-righteous { font-family: 'Righteous', sans-serif !important; }
.font-italiana { font-family: 'Italiana', serif !important; }
.font-unbounded { font-family: 'Unbounded', sans-serif !important; }

/* Smooth section transitions */
section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Hero always visible */
.hero {
    opacity: 1;
    transform: none;
}