/* =========================================================
   PROJECTS PAGE
   ========================================================= */

.proj-page {
    position: relative;
    padding-top: var(--nav-h);
}

/* =========================================================
   HERO
   ========================================================= */
.proj-hero {
    padding: 60px 0 80px;
}

.proj-hero__inner {
    max-width: 900px;
}

.proj-hero__title {
    font-size: clamp(2rem, 5.5vw, 4rem);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.03em;
    margin: 22px 0 26px;
}

.proj-hero__title em {
    font-style: normal;
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.proj-hero__desc {
    font-size: 1.08rem;
    color: var(--text-1);
    line-height: 1.75;
    max-width: 620px;
    margin-bottom: 40px;
}

.proj-hero__stats {
    display: flex;
    align-items: center;
    gap: 28px;
    flex-wrap: wrap;
}

.proj-hero__stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.proj-hero__stat-num {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.proj-hero__stat-label {
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-3);
}

.proj-hero__stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-2);
}

/* =========================================================
   FILTER
   ========================================================= */
.proj-filter {
    padding: 0 0 40px;
}

.proj-filter__inner {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    padding: 8px;
    background: var(--glass-bg);
    border: 1px solid var(--border-1);
    border-radius: var(--r-full);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    width: fit-content;
    max-width: 100%;
}

.proj-filter__btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 11px 22px;
    border-radius: var(--r-full);
    font-size: 0.86rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--text-1);
    background: transparent;
    border: 1px solid transparent;
    cursor: pointer;
    transition: color var(--dur-1) var(--ease),
                background var(--dur-2) var(--ease),
                border-color var(--dur-2) var(--ease);
    white-space: nowrap;
}

.proj-filter__btn:hover {
    color: var(--text-0);
    background: var(--surface-2);
}

.proj-filter__btn.is-active {
    color: #05060a;
    background: var(--grad-accent);
    box-shadow: 0 8px 24px rgba(0, 229, 255, 0.3);
}

.proj-filter__count {
    display: inline-grid;
    place-items: center;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    border-radius: var(--r-full);
    background: var(--surface-3);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.proj-filter__btn.is-active .proj-filter__count {
    background: rgba(5, 6, 10, 0.2);
    color: #05060a;
}

/* =========================================================
   PROJECTS GRID
   ========================================================= */
.proj-grid-section {
    padding: 20px 0 60px;
}

.proj-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.proj-card {
    position: relative;
    border-radius: var(--r-lg);
    background: var(--glass-bg);
    border: 1px solid var(--border-1);
    overflow: hidden;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: transform 0.5s var(--ease),
                border-color 0.5s var(--ease),
                box-shadow 0.5s var(--ease),
                opacity 0.4s var(--ease);
    display: flex;
    flex-direction: column;
}

.proj-card.is-hidden {
    display: none;
}

.proj-card:hover {
    transform: translateY(-10px);
    border-color: var(--border-accent);
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.5), 0 0 40px rgba(0, 229, 255, 0.12);
}

/* Visual */
.proj-card__visual {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.proj-card__visual-bg {
    position: absolute;
    inset: 0;
    opacity: 0.9;
    z-index: 0;
    transition: transform 0.8s var(--ease), opacity 0.5s var(--ease);
}

.proj-card:hover .proj-card__visual-bg {
    transform: scale(1.1);
    opacity: 1;
}

/* Project preview image */
.proj-card__visual-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    z-index: 1;
    transition: transform 0.8s var(--ease), filter 0.5s var(--ease);
}

.proj-card:hover .proj-card__visual-img {
    transform: scale(1.05);
    filter: brightness(1.08);
}

.proj-card__visual-img[data-fallback="true"] {
    display: none;
}

.proj-card__visual-grid {
    position: absolute;
    inset: 0;
    z-index: 2;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.35;
    mix-blend-mode: overlay;
    pointer-events: none;
}

.proj-card__visual-overlay {
    position: absolute;
    inset: 0;
    z-index: 3;
    background: linear-gradient(180deg, transparent 45%, rgba(5, 6, 10, 0.75) 100%);
    pointer-events: none;
}

.proj-card__visual-num {
    position: absolute;
    top: 18px;
    right: 22px;
    z-index: 4;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 0.14em;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.proj-card__visual-tag {
    position: absolute;
    bottom: 18px;
    left: 22px;
    z-index: 4;
    padding: 6px 12px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--r-full);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #fff;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* Body */
.proj-card__body {
    padding: 26px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.proj-card__meta {
    display: flex;
    gap: 16px;
    margin-bottom: 14px;
}

.proj-card__meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.74rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-2);
}

.proj-card__meta-item i {
    color: var(--accent);
    font-size: 0.7rem;
}

.proj-card__title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 10px;
    transition: color var(--dur-2) var(--ease);
}

.proj-card:hover .proj-card__title {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.proj-card__desc {
    font-size: 0.92rem;
    color: var(--text-1);
    line-height: 1.65;
    margin-bottom: 18px;
}

.proj-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 24px;
}

.proj-card__tags span {
    padding: 5px 11px;
    background: var(--surface-2);
    border: 1px solid var(--border-1);
    border-radius: var(--r-full);
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    color: var(--text-1);
    transition: color var(--dur-1) var(--ease),
                border-color var(--dur-1) var(--ease),
                background var(--dur-1) var(--ease);
}

.proj-card:hover .proj-card__tags span {
    border-color: var(--border-accent);
    color: var(--accent);
    background: var(--accent-soft);
}

.proj-card__actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: auto;
}

.proj-card__btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--r-full);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform var(--dur-1) var(--ease),
                background var(--dur-2) var(--ease),
                border-color var(--dur-2) var(--ease),
                color var(--dur-2) var(--ease),
                box-shadow var(--dur-2) var(--ease);
}

.proj-card__btn--primary {
    background: var(--grad-accent);
    color: #05060a;
    box-shadow: 0 6px 20px rgba(0, 229, 255, 0.25);
}

.proj-card__btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 229, 255, 0.4);
}

.proj-card__btn--ghost {
    background: var(--surface-2);
    color: var(--text-0);
    border-color: var(--border-2);
}

.proj-card__btn--ghost:hover {
    background: var(--surface-3);
    border-color: var(--border-accent);
    transform: translateY(-2px);
}

/* =========================================================
   CTA
   ========================================================= */
.proj-cta {
    padding: 100px 0 40px;
}

.proj-cta__inner {
    position: relative;
    padding: 70px 50px;
    border-radius: var(--r-xl);
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.08), rgba(168, 85, 247, 0.08));
    border: 1px solid var(--border-1);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    text-align: center;
    overflow: hidden;
}

.proj-cta__inner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.15), transparent 70%);
    pointer-events: none;
}

.proj-cta__title {
    position: relative;
    z-index: 1;
    font-size: clamp(1.6rem, 4vw, 2.8rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.proj-cta__title em {
    font-style: normal;
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.proj-cta__desc {
    position: relative;
    z-index: 1;
    color: var(--text-1);
    font-size: 1rem;
    margin-bottom: 32px;
    max-width: 480px;
    margin-inline: auto;
}

.proj-cta__actions {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

/* =========================================================
   PROJECT MODAL
   ========================================================= */
.proj-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.35s var(--ease), visibility 0.35s var(--ease);
}

.proj-modal.is-open {
    visibility: visible;
    opacity: 1;
}

.proj-modal__bg {
    position: absolute;
    inset: 0;
    background: rgba(5, 6, 10, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    cursor: pointer;
}

.proj-modal__dialog {
    position: relative;
    width: 100%;
    max-width: 920px;
    max-height: calc(100vh - 40px);
    background: var(--bg-1);
    border: 1px solid var(--border-2);
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.6);
    transform: translateY(30px) scale(0.97);
    transition: transform 0.4s var(--ease);
    display: flex;
    flex-direction: column;
}

.proj-modal.is-open .proj-modal__dialog {
    transform: translateY(0) scale(1);
}

.proj-modal__close {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 5;
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    cursor: pointer;
    transition: transform var(--dur-1) var(--ease),
                background var(--dur-2) var(--ease);
}

.proj-modal__close:hover {
    transform: rotate(90deg);
    background: rgba(0, 0, 0, 0.75);
}

.proj-modal__content {
    overflow-y: auto;
    max-height: calc(100vh - 40px);
    padding: 0;
}

/* =========================================================
   MODAL PREVIEW IMAGE
   ========================================================= */
.modal-preview {
    position: relative;
    width: 100%;
    max-height: 420px;
    overflow: hidden;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border-1);
}

.modal-preview__img {
    width: 100%;
    height: auto;
    max-height: 420px;
    object-fit: cover;
    object-position: top center;
    display: block;
}

/* Modal hero */
.modal-hero {
    position: relative;
    padding: 50px 44px 40px;
    overflow: hidden;
}

.modal-hero__bg {
    position: absolute;
    inset: 0;
    opacity: 0.95;
}

.modal-hero__grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.5;
    mix-blend-mode: overlay;
}

.modal-hero__content {
    position: relative;
    z-index: 1;
    color: #fff;
}

.modal-hero__num {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.18em;
    padding: 5px 12px;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--r-full);
    margin-bottom: 16px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.modal-hero__title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
}

.modal-hero__subtitle {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 20px;
}

.modal-hero__tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.modal-hero__tags span {
    padding: 5px 12px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--r-full);
    font-size: 0.72rem;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

/* Modal body */
.modal-body {
    padding: 40px 44px 50px;
}

.modal-section {
    margin-bottom: 36px;
}

.modal-section:last-child {
    margin-bottom: 0;
}

.modal-section__label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
    display: block;
}

.modal-section__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: -0.01em;
    color: var(--text-0);
}

.modal-section p {
    font-size: 0.96rem;
    color: var(--text-1);
    line-height: 1.75;
    margin-bottom: 12px;
}

.modal-section p:last-child {
    margin-bottom: 0;
}

/* Two column grid */
.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.modal-grid__col h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-0);
}

.modal-grid__col ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.modal-grid__col li {
    position: relative;
    padding-left: 20px;
    font-size: 0.9rem;
    color: var(--text-1);
    line-height: 1.6;
}

.modal-grid__col li::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 0;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

/* Tech grid */
.modal-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.modal-tech span {
    padding: 8px 14px;
    background: var(--surface-2);
    border: 1px solid var(--border-1);
    border-radius: var(--r-full);
    font-size: 0.8rem;
    color: var(--text-1);
    transition: color var(--dur-1) var(--ease),
                border-color var(--dur-1) var(--ease),
                background var(--dur-1) var(--ease);
}

.modal-tech span:hover {
    border-color: var(--border-accent);
    color: var(--accent);
    background: var(--accent-soft);
}

/* Workflow */
.modal-workflow {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.modal-workflow__step {
    padding: 8px 16px;
    background: var(--accent-soft);
    border: 1px solid var(--border-accent);
    border-radius: var(--r-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    white-space: nowrap;
}

.modal-workflow__arrow {
    color: var(--text-3);
    font-size: 0.8rem;
}

/* Modal actions */
.modal-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    padding-top: 24px;
    border-top: 1px solid var(--border-1);
}

.modal-actions .btn {
    flex: 0 1 auto;
}

/* =========================================================
   LIGHT THEME
   ========================================================= */
[data-theme="light"] .proj-card {
    background: rgba(255, 255, 255, 0.7);
}

[data-theme="light"] .proj-modal__dialog {
    background: #ffffff;
}

[data-theme="light"] .proj-cta__inner {
    background: linear-gradient(135deg, rgba(0, 119, 255, 0.06), rgba(124, 58, 237, 0.06));
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) {
    .proj-grid {
        grid-template-columns: 1fr;
    }

    .modal-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .proj-hero {
        padding: 40px 0 50px;
    }

    .proj-hero__stats {
        gap: 18px;
    }

    .proj-hero__stat-divider {
        height: 32px;
    }

    .proj-filter__inner {
        width: 100%;
        overflow-x: auto;
        justify-content: flex-start;
        border-radius: var(--r-md);
        flex-wrap: nowrap;
        padding: 6px;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .proj-filter__inner::-webkit-scrollbar {
        display: none;
    }

    .proj-filter__btn {
        padding: 9px 16px;
        font-size: 0.78rem;
    }

    .proj-card__visual {
        height: 200px;
    }

    .proj-card__body {
        padding: 22px;
    }

    .proj-card__actions {
        flex-direction: column;
    }

    .proj-card__btn {
        justify-content: center;
        width: 100%;
    }

    .proj-cta {
        padding: 60px 0 20px;
    }

    .proj-cta__inner {
        padding: 50px 30px;
    }

    .proj-cta__actions .btn {
        flex: 1 1 100%;
        justify-content: center;
    }

    .modal-hero {
        padding: 40px 26px 30px;
    }

    .modal-body {
        padding: 30px 26px 40px;
    }

    .proj-modal__dialog {
        max-height: calc(100vh - 20px);
    }

    .modal-actions .btn {
        flex: 1 1 100%;
        justify-content: center;
    }

    .modal-preview {
        max-height: 240px;
    }

    .modal-preview__img {
        max-height: 240px;
    }
}

@media (max-width: 480px) {
    .proj-hero__stats {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }

    .proj-hero__stat-divider {
        display: none;
    }

    .proj-card__visual {
        height: 170px;
    }

    .proj-card__body {
        padding: 20px;
    }

    .proj-card__title {
        font-size: 1.3rem;
    }

    .proj-cta__inner {
        padding: 40px 22px;
    }

    .modal-hero {
        padding: 34px 22px 26px;
    }

    .modal-body {
        padding: 24px 22px 34px;
    }

    .modal-hero__title {
        font-size: 1.5rem;
    }
}