/* =========================================================
   0. GLOBAL RESET
   ========================================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* =========================================================
   1. GLOBAL DESIGN TOKENS (WHITE UI, DATA-FOCUSED)
   ========================================================= */
:root {
    /* ===== Core Neutrals ===== */
    --white: #ffffff;

    --text-primary: #131515;    /* headings, primary labels */
    --text-secondary: #102d29;  /* body text */
    --text-muted: #4e7828;      /* captions, metadata */

    /* ===== Glass Surfaces (White Background Safe) ===== */
    --glass-light: rgba(16, 45, 41, 0.04);
    --glass-medium: rgba(16, 45, 41, 0.08);
    --glass-strong: rgba(16, 45, 41, 0.14);

    /* ===== Borders ===== */
    --border-soft: rgba(19, 21, 21, 0.10);
    --border-medium: rgba(19, 21, 21, 0.18);

    /* ===== Accent System (Controlled Use) ===== */
    --accent-primary: #104733;   /* primary actions */
    --accent-secondary: #276033; /* hover / secondary actions */
    --accent-muted: #7f8d13;     /* tags, indicators */

    --accent-warm: #ba9d00;      /* warnings / highlights */
    --accent-hot: #ffa600;       /* sparing emphasis only */

    /* ===== Shadows (Elevation, Not Glow) ===== */
    --soft-shadow:
        0 2px 6px rgba(19, 21, 21, 0.06);

    --card-shadow:
        0 10px 26px rgba(19, 21, 21, 0.10);

    --img-shadow:
        0 6px 18px rgba(19, 21, 21, 0.14);

    /* ===== Motion ===== */
    --trans-fast: 0.15s ease;
    --trans: 0.25s ease;
}

/* =========================================================
   2. GLOBAL BODY & TYPOGRAPHY
   ========================================================= */
body {
    background: #f7f6f2; /* warm white, neutral */
    color: var(--text-secondary);
    font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

h1, h2, h3 {
    font-weight: 800;
    color: var(--text-primary);
}

/* =========================================================
   GLOBAL BUTTON ENHANCEMENT (PROJECT GREEN SYSTEM)
   ========================================================= */

.view-button,
.tag-btn,
.control-btn,
.contact-icons a,
.tab-btn,
body.project-page nav a {
    background: linear-gradient(135deg, #1a5740, #267d5b 60%, #2d8f6c);
    color: #e9f9f1;
    border: 1px solid rgba(255,255,255,0.15);
    box-shadow:
        0 2px 6px rgba(0,0,0,0.35),
        inset 0 1px 2px rgba(255,255,255,0.1);
}

.view-button:hover,
.control-btn:hover,
.contact-icons a:hover,
.tab-btn:hover,
body.project-page nav a:hover,
body.project-page .project-button:hover {
    transform: scale(1.07) translateY(-2px);
    background: linear-gradient(135deg, #1a5740, #267d5b 60%, #2d8f6c);
    box-shadow:
        0 4px 14px rgba(0,0,0,0.45),
        0 0 12px rgba(36,119,88,0.55);
}

/* =========================================================
   3. UTILITIES
   ========================================================= */
.hidden {
    display: none !important;
}

/* =========================================================
   4. HEADER
   ========================================================= */
header {
    text-align: center;
    padding-top: 20px;
    position: relative;
    z-index: 2;
}

.profile-media {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
}

/* Control Btns */
.control-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    padding: 6px;
    background: var(--glass-light);
    border: 1px solid var(--border-soft);
    box-shadow: var(--soft-shadow);
    margin: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: transform .2s, box-shadow .2s;
}


.control-btn:hover { transform: scale(1.05); }
.control-btn img {
    width: 28px;
    height: 28px;
    transition: transform .1s ease;
}
.control-btn:active img { transform: scale(0.9); }

.control-btn-wrapper {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 15px;
}


.video-wrapper video {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border-radius: 50%;
    padding: 6px;
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(4px);
    box-shadow: 0 0 25px rgba(255, 255, 255, 0.973);
    margin: 0 auto;

    filter:
        brightness(1.05)
        contrast(1.08)
        saturate(1.05)
        sepia(0.04);

    transition: filter 0.3s ease;
}

.tag-btn {
    background: var(--glass-medium);
    border: 1px solid var(--border-soft);
    color: var(--text-secondary);

    padding: 6px 16px;
    border-radius: 25px;

    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;

    backdrop-filter: blur(6px);
    box-shadow: var(--soft-shadow);

    transition: transform var(--trans-fast), box-shadow var(--trans-fast), background var(--trans-fast);
}
.tag-btn:hover {
    transform: translateY(-1px);
    box-shadow:
        0 4px 12px rgba(19,21,21,0.12);
}
.tag-btn.active {
    background: var( --accent-muted);
    color: var(--white);
    box-shadow: var(--soft-shadow);
}

/* =========================================================
   5. TOP NAVIGATION (HOME PAGE)
   ========================================================= */
.nav-tabs {
    display: flex;
    justify-content: center;
    gap: 18px;
    margin: 20px auto 10px;
    padding: 10px 0;
    z-index: 3;
}

.tab-btn {
    border: 1px solid var(--glass-medium);
    padding: 10px 18px;
    background: linear-gradient(135deg, #1a5740, #267d5b 60%, #2d8f6c);
    border-radius: 25px;
    color: var(--white);
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    backdrop-filter: blur(6px);
    transition: transform .2s, box-shadow .2s;
}


.tab-btn:hover {
    transform: translateY(-2px);
}


.tab-btn.active {
    background: var(--white);
    color: var(--text-primary);
    box-shadow: var(--soft-shadow);
}

.tab-btn.active:hover,
.tab-btn.active:active {
    background: var(--white);
    color: var(--text-primary);
    transform: none;
    box-shadow: var(--soft-shadow);
}


/* =========================================================
   6. PANEL SYSTEM
   ========================================================= */
section {
    display: none;
    opacity: 0;
    padding: 20px 10vw;
    transition: opacity .35s ease-in-out;
}

section.active-section {
    display: block;
    opacity: 1;
}

/* Ensure project pages always show content AND remove home-page padding */
body.project-page section {
    display: block !important;
    opacity: 1 !important;
    padding: 40px 28px !important;  /* project-page card styling */
}

/* =========================================================
   7. ABOUT
   ========================================================= */
#about .about-card {
    background:
        linear-gradient(
            135deg,
            rgba(255,255,255,0.78),
            rgba(247,246,242,0.85)
        );
    border: 1px solid var(--border-medium);
    border-left: 4px solid rgba(124, 128, 124, 0.45);
    border-radius: 20px;
    padding: 40px;
    line-height: 1.8;
    margin-bottom: 30px;

    backdrop-filter: blur(12px);

    box-shadow:
        0 10px 28px rgba(19,21,21,0.12),
        inset 0 1px 0 rgba(255,255,255,0.6);

    transition: transform 0.3s ease, box-shadow 0.3s ease;
}


#about .about-card:hover {
    transform: translateY(-4px);
    box-shadow:
        0 16px 40px rgba(19,21,21,0.16),
        inset 0 1px 0 rgba(255,255,255,0.65);
}


#about .about-card h2 {
    color: var(--text-primary) !important;
    margin-bottom: 30px !important;
    font-size: 2.2em !important;
    border-bottom: 3px solid rgba(255, 255, 255, 0.3) !important;
    padding-bottom: 15px !important;
}

#about .about-card p {
    margin-bottom: 20px !important;
    color: var(--text-primary) !important;
}

#about .about-card p strong {
    color: var(--text-primary) !important;
    font-size: 1.1em !important;
    font-weight: 600 !important;
}

#about .about-card ul {
    margin: 15px 0 25px 20px !important;
    padding-left: 20px !important;
}

#about .about-card ul li {
    margin-bottom: 10px !important;
    padding-left: 15px !important;
    color: var(--text-primary) !important;
}

#about .story-highlight {
    background: var(--glass-light);
    border-left: 4px solid var(--accent-muted);
    padding: 20px !important;
    margin: 25px 0 !important;
    border-radius: 10px !important;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1) !important;
}


#about .story-highlight p {
    margin-bottom: 0 !important;
}

#about .places { 
    margin-bottom: 1rem !important;
    text-align: center !important;
    font-style: italic !important;
    opacity: 0.85 !important;
    padding: 15px !important;
    background: rgba(102, 126, 234, 0.08) !important;
    border-radius: 10px !important;
    color: var(--text-primary) !important;
}

/* =========================================================
   8. PORTFOLIO
   ========================================================= */

.portfolio-images {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 30px;
    margin-top: 10px;
}

.portfolio-item img {
    width: 100%;
    height: 200px;
    object-fit: cover; /* ensures the image fills the container */
    border-radius: 8px;
    transition: transform .25s, box-shadow .25s;
}


.portfolio-item img:hover {
    transform: scale(1.05);
    box-shadow: 0 0 18px rgba(255,255,255,0.4);
}

.project-title {
    display: inline-block;
    margin-top: 6px;
    padding: 4px 10px;
    background: var(--glass-light);
    color: var(--text-secondary);
    border: 1px solid var(--border-soft);
    font-weight: bold;
    text-decoration: none;
    transition: var(--trans);
}


.project-title:hover {
    transform: scale(1.05);
    box-shadow: var(--soft-shadow);
}

.view-button {
    display: inline-block;
    margin-top: 12px;
    padding: 8px 18px;
    background: linear-gradient(135deg, #1a5740, #267d5b 60%, #2d8f6c);
    color: var(--white);
    font-weight: bold;
    border-radius: 25px;
    text-decoration: none;
    transition: var(--trans);
}
.view-button:hover {
    transform: scale(1.08);
    box-shadow: 0 0 14px var(--white);
}


.portfolio-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
    margin-top: 18px;
}

/* =========================================================
   9. MEDIA CAROUSEL
   ========================================================= */
.media-carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
    margin: 30px 0;
}

.carousel-window { overflow: hidden; }

.carousel-track {
    display: flex;
    gap: 20px;
    transition: transform .2s ease;
    will-change: transform;
}

.media-item { flex: 0 0 300px; }

.media-thumb {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 8px;
    cursor: zoom-in;
    transition: transform .3s, box-shadow .3s;
}

.media-thumb:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

.carousel-prev,
.carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.4);
    color: var(--white);
    border: none;
    padding: 12px 18px;
    border-radius: 50%;
    font-size: 2rem;
    cursor: pointer;
}

.carousel-prev { left: 10px; }
.carousel-next { right: 10px; }

/* =========================================================
   10. CONTACT
   ========================================================= */
.contact-icons {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.contact-icons a {
    padding: 8px 18px;
    background: linear-gradient(135deg, #1a5740, #267d5b 60%, #2d8f6c);
    color: var(--white);
    border: 1px solid var(--border-soft);
    box-shadow: var(--soft-shadow);
    font-weight: bold;
    border-radius: 25px;
    text-decoration: none;
    transition: var(--trans);
}

.contact-icons a:hover {
    transform: scale(1.08);
    box-shadow: 0 0 14px var(--white);
    color: var(--white);
}

@media (max-width: 640px) {
    .contact-icons {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    .contact-icons a {
        width: 80%;          /* buttons stretch slightly for touch targets */
        text-align: center;
        background: linear-gradient(135deg, #1a5740, #267d5b 60%, #2d8f6c);
        font-size: 1rem;
        padding: 10px 0;
    }
}


/* =========================================================
   11. FOOTER
   ========================================================= */
footer {
    text-align: center;
    margin-top: 20px;
    padding: 10px 0;
    opacity: 0.75;
    font-weight: 700;
}

/* =========================================================
   12. PROJECT PAGES BASE
   ========================================================= */
body.project-page {
    background: #f7f6f2;
    color: var(--text-secondary);
}


/* Navigation */
body.project-page nav {
    text-align: center;
    margin-top: 25px;
    margin-bottom: -10px;
}

body.project-page nav a {
    display: inline-block;
    padding: 10px 22px;
    margin: 18px auto 25px;
    border: 1px solid var(--border-soft);
    color: var(--white);
    border-radius: 25px;
    font-weight: 700;
    font-size: 1.05rem;
    text-decoration: none;
    backdrop-filter: blur(6px);

    transition: background .2s, transform .2s;
}



body.project-page nav a:hover {
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 0 14px rgba(8, 5, 5, 0.6);
}

/* Header */
body.project-page header h1 {
    width: 700px;
    max-width: 90%;
    margin: 0 auto;
    margin-top: 18px;
    font-size: 2rem;
    letter-spacing: 0.5px;
    text-shadow:
        0 2px 6px rgba(0,0,0,0.45),
        0 0 10px rgba(255,255,255,0.3);
}

body.project-page header img {
    width: 170px;
    height: 170px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow:
        0 4px 14px rgba(0,0,0,0.4),
        0 0 10px rgba(255,255,255,0.4);
}

/* Content card */
body.project-page section {
    max-width: 900px;
    margin: 40px auto;
    padding: 40px 28px;
    background: rgba(255,255,255,0.92);
    color: #111;
    border-radius: 14px;
    box-shadow:
        var(--card-shadow),
        inset 0 1px 6px rgba(255,255,255,0.5);
}

/* Page images */
body.project-page section img {
    width: 100%;
    max-width: 700px;
    display: block;
    margin: 0 auto 25px;
    border-radius: 10px;
    box-shadow: var(--img-shadow);
}

/* PDF embed */
body.project-page .pdf-embed {
    width: 100%;
    height: 90vh;
    border: none;
    border-radius: 10px;
    margin: 20px 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

/* Project page button (green gradient) */
body.project-page .project-button {
    display: inline-block;
    padding: 10px 22px;
    margin-top: 12px;
    background: linear-gradient(135deg, #1a5740, #267d5b 60%, #2d8f6c);
    color: #ffffff;
    font-weight: 700;
    letter-spacing: 0.5px;

    border-radius: 28px;
    border: 1px solid rgba(255,255,255,0.15);

    text-decoration: none;

    box-shadow:
        0 2px 6px rgba(0,0,0,0.35),
        inset 0 1px 2px rgba(255,255,255,0.1);

    transition: transform var(--trans), box-shadow var(--trans), background var(--trans);
}

body.project-page .project-button:hover {
    transform: scale(1.07) translateY(-2px);
    background: linear-gradient(135deg, #1a5740, #267d5b 60%, #2d8f6c);
    box-shadow:
        0 4px 14px rgba(0,0,0,0.45),
        0 0 12px rgba(36,119,88,0.55);
}

body.project-page .project-button:active {
    transform: scale(0.96);
    box-shadow:
        0 2px 6px rgba(0,0,0,0.35),
        inset 0 2px 4px rgba(0,0,0,0.4);
}

/* =========================================================
   13. MEDIA MODAL
   ========================================================= */
.media-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.85);
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.media-modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
}

#media-modal-img {
    width: 100%;
    border-radius: 10px;
}

.media-modal-close {
    position: absolute;
    top: 25px;
    right: 30px;
    font-size: 42px;
    color: var(--white);
    background: none;
    border: none;
    cursor: pointer;
    z-index: 10000;
}


/* =========================================================
   SUMMARY CARD – STRONG PRESENTATION
   ========================================================= */

.summary-card {
    padding: 32px;
    background: linear-gradient(135deg, #ffffff, #f7f9fc);
    border-radius: 14px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow:
        0 8px 20px rgba(0, 0, 0, 0.06),
        0 2px 6px rgba(0, 0, 0, 0.04);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.summary-card:hover {
    transform: translateY(-3px);
    box-shadow:
        0 14px 30px rgba(0, 0, 0, 0.08),
        0 4px 10px rgba(0, 0, 0, 0.06);
}

.summary-card h3 {
    margin-top: 0;
    margin-bottom: 12px;
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.summary-card p {
    margin: 0 0 10px;
    font-size: 0.95rem;
    line-height: 1.55;
}

.summary-card p:last-child {
    margin-bottom: 0;
}

.summary-card strong {
    font-weight: 700;
}

.summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
    margin-top: 18px;
}


@keyframes gradient-shift {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.summary-grid.four-col {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1200px) {
    .summary-grid.four-col {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .summary-grid.four-col {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .summary-grid, .impact-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}