/* =========================================
   GLOBAL SECTION STYLES
   ========================================= */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-top: 0;
    margin-bottom: 2rem;
    color: var(--color-text-primary);
    letter-spacing: -0.04em;
    line-height: 1.1;
}
.section-title span { color: inherit; }

/* --- LOGO --- */
.logo {
    text-decoration: none !important; 
    color: inherit;
    cursor: pointer;
    outline: none;
    border-radius: 4px;
}
.logo:focus-visible {
    box-shadow: 0 0 0 3px rgba(0,0,0,0.3);
}

/* =========================================
   HERO SECTION
   ========================================= */
#hero {
    min-height: 85vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding:  0;
    background-color: transparent;
}
@media (max-width: 768px) {
    #hero {
        min-height: 70vh;
        align-items: flex-start;
        padding-top: 2rem;
    }
}
.hero-content {
    max-width: 52rem;
    text-align: center;
    padding: 0 1.5rem;
}
.hero-text { text-align: center; }
.hero-greeting {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    margin-top: 0;
}
.hero-title {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.04em;
    color: var(--color-text-primary);
    margin-bottom: 1.25rem;
}
.dark .hero-title {
    color: var(--color-text-primary);
}
.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    font-weight: 400;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}
.hero-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    max-width: 30rem;
    margin: 0 auto 2.5rem;
    line-height: 1.75;
    font-weight: 400;
}
.animate-name-wave {
    display: inline;
    animation: none;
}

/* =========================================
   ABOUT SECTION
   ========================================= */
.about-content {
    max-width: 56rem; margin-left: auto; margin-right: auto;
    color: var(--color-text-secondary); display: flex; flex-direction: column;
    gap: 2rem; font-size: 1.05rem; line-height: 1.9;
}

/* =========================================
   TIMELINE SECTION
   ========================================= */
.timeline-container {
    position: relative;
    max-width: 56rem;
    margin-left: auto;
    margin-right: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.card-wrapper {
    width: 100%;
}

.timeline-item { 
    background-color: var(--color-bg-primary);
    border: 0.5px solid var(--color-border-subtle);
    border-radius: 0.75rem;
    padding: 1.5rem;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    z-index: 1;
}

.timeline-item + .timeline-item {
    border-top: 0.5px solid var(--color-border-subtle);
}

.dark .timeline-item {
    background-color: #111111;
    border-color: rgba(255,255,255,0.08);
}

.timeline-item:hover {
    border-color: var(--color-indigo-600);
    transform: none;
    box-shadow: none;
}

.timeline-content { 
    display: flex; 
    flex-direction: column;
    gap: 0.25rem; 
}

.timeline-text { 
    flex-grow: 1; 
}

.timeline-date {
    display: block;
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
    background: none;
    border: none;
    padding: 0;
    width: auto;
}

.timeline-title { font-size: 1.25rem; font-weight: 700; color: var(--color-text-primary); margin-bottom: 0.25rem; }
.timeline-institution { font-size: 1rem; font-weight: 500; color: var(--color-text-secondary); margin-bottom: 0.75rem; }
.timeline-description { color: var(--color-text-secondary); font-size: 0.95rem; }

/* =========================================
   SKILLS & PROJECTS CONTAINERS
   ========================================= */
.skills-grid {
    max-width: 80rem; margin-left: auto; margin-right: auto;
    display: grid; grid-template-columns: repeat(1, minmax(0, 1fr)); gap: 2rem;
}

.projects-grid {
    max-width: 80rem; margin-left: auto; margin-right: auto;
    display: grid; grid-template-columns: repeat(1, 1fr); gap: 2.5rem; 
}

/* =========================================
   CARD STYLES
   ========================================= */

.skill-card, .project-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 1.75rem;
    gap: 0.5rem;
    background-color: var(--color-bg-primary);
    border: 0.5px solid var(--color-border-subtle);
    border-radius: 1rem;
    overflow: hidden;
    height: 100%;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.dark .skill-card, .dark .project-card {
    background-color: #111111;
}

.skill-card:hover,
.project-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.07);
}

.dark .skill-card:hover,
.dark .project-card:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
}

/* ACCESSIBILITY */
.skill-card:focus-visible, .project-card:focus-visible,
.link-button:focus-visible, .social-link:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.6) !important;
    border-color: var(--color-indigo-600);
}

.skill-card {
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 12rem;
}
.project-card {
    justify-content: flex-start;
    padding: 1.25rem 1.5rem;
    border-radius: 0.75rem;
    gap: 0;
}

/* =========================================
   INNER CONTENT
   ========================================= */
.skill-icon {
    font-size: 1.5rem;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.skill-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.skill-description {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
    margin-top: 0.25rem;
}

/* Project Content */
.project-header, .project-description, .project-tech-list, .project-links {
    position: relative;
    z-index: 2; 
}

.project-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 0.75rem; gap: 1rem; }

.project-title {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0;
    padding: 0;
    border-radius: 0;
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-secondary);
    background: none;
    border: none;
    margin-bottom: 0.5rem;
}
.status-development { background: none; color: var(--color-text-secondary); }
.status-completed   { background: none; color: var(--color-text-secondary); }
.status-live        { background: none; color: var(--color-text-secondary); }
.dark .status-development,
.dark .status-completed,
.dark .status-live { background: none; color: var(--color-text-secondary); }
.status-live::before { display: none; }

.project-description {
    font-size: 0.82rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 0.75rem;
    flex-grow: 1;
}

.project-tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
    margin-top: auto;
}

.project-tech-item {
    font-size: 0.7rem;
    font-weight: 500;
    background-color: transparent;
    color: var(--color-text-secondary);
    padding: 0.15rem 0.6rem;
    border-radius: 99px;
    border: 0.5px solid var(--color-border-subtle);
}

.project-links {
    display: flex;
    flex-direction: row;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.link-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem 0.9rem;
    font-size: 0.78rem;
    font-weight: 500;
    border-radius: 0.375rem;
    text-decoration: none;
    border: 0.5px solid var(--color-border-subtle);
    color: var(--color-text-primary);
    background-color: transparent;
    transition: background-color 0.15s ease;
    width: auto;
    box-shadow: none;
}
.link-button:hover {
    background-color: var(--color-bg-secondary);
    border-color: var(--color-border-subtle);
    transform: none;
}

/* =========================================
   CONTACT & UTILS
   ========================================= */
.contact-section { display: flex; flex-direction: column; align-items: center; text-align: center; }

.contact-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
    letter-spacing: -0.04em;
    line-height: 1.1;
}
.contact-title span { color: inherit; }

.contact-subtitle { font-size: 1.1rem; color: var(--color-text-secondary); max-width: 42rem; margin-bottom: 3rem; }

.social-links-container {
    display: flex;
    flex-direction: row;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 1rem;
    border-radius: 0.375rem;
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-primary);
    background-color: transparent;
    border: 0.5px solid var(--color-border-subtle);
    transition: background-color 0.15s ease;
}

.social-link:hover {
    background-color: var(--color-bg-secondary);
    transform: none;
    box-shadow: none;
}

.social-link svg {
    width: 0.9rem;
    height: 0.9rem;
    flex-shrink: 0;
}

.btn-primary.btn-download {
    gap: 0.4rem;
    padding: 0.5rem 1.25rem;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 0.375rem;
    box-shadow: none;
}

.cursor {
    display: inline-block;
    width: 3px;
    background-color: var(--color-text-primary);
    animation: blink 1s infinite;
    margin-left: 5px;
}
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* --- NEW: Scroll to Top Button --- */
#scroll-top-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 50;
    width: 3rem;
    height: 3rem;
    border-radius: 9999px;
    background-color: #1d1d1f;
    color: var(--color-white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s, background-color 0.3s;
}

.dark #scroll-top-btn {
    background-color: #f5f5f7;
    color: #1d1d1f;
}

#scroll-top-btn:not(.hidden) {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#scroll-top-btn:hover {
    background-color: var(--color-indigo-700);
    transform: translateY(-3px);
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
}

/* --- NEW: Toast Notification --- */
.cv-toast {
    position: fixed;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-indigo-600);
    color: var(--color-white);
    padding: 1rem 2rem;
    border-radius: 9999px;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
    z-index: 1000;
    font-weight: 500;
    text-align: center;
    width: max-content;
    max-width: 90vw;
    bottom: -100px; /* Start off-screen */
    animation: slideInFadeOut 3.5s ease forwards;
}

@keyframes slideInFadeOut {
    0% { bottom: -100px; opacity: 0; }
    10% { bottom: 30px; opacity: 1; }
    90% { bottom: 30px; opacity: 1; }
    100% { bottom: -100px; opacity: 0; }
}

/* =========================================
   ACCESSIBILITY: REDUCED MOTION
   ========================================= */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .skill-card:hover, .project-card:hover {
        transform: none !important;
        box-shadow: none !important;
    }
}