/* ===================================
   PROJECTS SLIDESHOW (Option A)
   Per MASTER-PLAN Section 5
   One project at a time, magazine-style
   =================================== */

/* Page Layout */
.projects-page {
    min-height: 100vh;
    padding-top: 80px; /* Space for navbar */
    background-color: var(--color-bg);
}

.slideshow-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-4xl) var(--spacing-2xl);
    min-height: calc(100vh - 80px);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* ===================================
   SLIDE STRUCTURE
   =================================== */
.slide {
    display: none;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.slide.active {
    display: block;
    opacity: 1;
    animation: fadeIn 0.6s ease-in-out;
}

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

/* Project Image */
.project-image-container {
    position: relative;
    width: 100%;
    aspect-ratio: 3/2;
    overflow: hidden;
    margin-bottom: var(--spacing-2xl);
    background-color: var(--color-bg);
    border: 1px solid var(--color-primary);
}

.project-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: filter var(--transition-slow), transform var(--transition-slow);
}

.slide:hover .project-image-container img {
    filter: grayscale(0%);
    transform: scale(1.02);
}

/* Hover Overlay */
.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 26, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-medium);
    cursor: pointer;
}

.slide:hover .project-overlay {
    opacity: 1;
}

.view-project-text {
    color: var(--color-primary);
    font-weight: 500;
    font-size: var(--text-base);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

/* Project Info */
.project-info {
    text-align: center;
}

.project-title {
    font-size: var(--text-h1);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
    text-transform: none;
}

.project-meta {
    font-size: var(--text-caption);
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    margin-bottom: var(--spacing-xl);
}

.project-description {
    font-size: var(--text-base);
    line-height: var(--line-height-normal);
    color: var(--color-primary);
    max-width: 65ch;
    margin: 0 auto;
}

/* ===================================
   NAVIGATION ARROWS
   =================================== */
.slideshow-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-3xl);
    gap: var(--spacing-2xl);
}

.arrow-button {
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: 400;
    cursor: pointer;
    transition: all var(--transition-medium);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    min-width: 120px;
}

.arrow-button:hover:not(:disabled) {
    background-color: var(--color-primary);
    color: var(--color-bg);
}

.arrow-button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Slide Counter */
.slide-counter {
    font-size: var(--text-caption);
    color: var(--color-gray);
    text-align: center;
    letter-spacing: 0.05em;
}

/* ===================================
   KEYBOARD NAVIGATION HINT
   =================================== */
.keyboard-hint {
    text-align: center;
    margin-top: var(--spacing-xl);
    font-size: var(--text-caption);
    color: var(--color-gray);
    opacity: 0.6;
}

/* ===================================
   RESPONSIVE (Section 13)
   =================================== */
@media (max-width: 768px) {
    .slideshow-container {
        padding: var(--spacing-2xl) var(--spacing-xl);
    }

    .project-image-container {
        aspect-ratio: 4/3;
    }

    .slideshow-nav {
        margin-top: var(--spacing-2xl);
        gap: var(--spacing-lg);
    }

    .arrow-button {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--text-caption);
        min-width: 100px;
    }

    .keyboard-hint {
        display: none;
    }

    /* Add swipe support hint */
    .swipe-hint {
        display: block;
        text-align: center;
        margin-top: var(--spacing-md);
        font-size: var(--text-caption);
        color: var(--color-gray);
        opacity: 0.6;
    }
}

@media (min-width: 769px) {
    .swipe-hint {
        display: none;
    }
}

@media (max-width: 480px) {
    .projects-page {
        padding-top: 60px;
    }

    .slideshow-container {
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .project-image-container {
        margin-bottom: var(--spacing-xl);
    }

    .project-title {
        font-size: clamp(1.5rem, 8vw, 2.5rem);
    }
}

/* ===================================
   SCROLL INDICATOR
   =================================== */
.scroll-indicator {
    text-align: center;
    margin-top: var(--spacing-3xl);
    padding-bottom: var(--spacing-2xl);
}

.scroll-link {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-primary);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    transition: opacity var(--transition-medium);
}

.scroll-link:hover {
    opacity: 0.6;
}

.scroll-arrow {
    font-size: var(--text-xl);
    animation: bounce-arrow 2s ease-in-out infinite;
}

@keyframes bounce-arrow {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(10px);
    }
}

/* Wrapper for slideshow section */
.slideshow-wrapper {
    min-height: 100vh;
    padding-top: 80px;
    background-color: var(--color-bg);
}