/* ═══════════════════════════════════════════════════════════════
   AMA Practicum — Premium Login Experience
   ═══════════════════════════════════════════════════════════════ */

/* ── Animated background ── */
.login-page {
    background:
        radial-gradient(ellipse 120% 80% at 0% 0%, rgba(255, 200, 200, 0.15), transparent 50%),
        radial-gradient(ellipse 90% 70% at 100% 100%, rgba(0, 0, 0, 0.25), transparent 55%),
        radial-gradient(ellipse 60% 50% at 50% 50%, rgba(180, 30, 30, 0.4), transparent 70%),
        linear-gradient(155deg, #4a0a0a 0%, #6e1414 25%, #8B1A1A 50%, #7a1515 75%, #5a1010 100%);
    min-height: 100vh;
    height: auto;
    overflow-x: hidden;
    overflow-y: auto;
}

.login-page::before {
    opacity: 0.5;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 48px 48px;
    animation: login-grid-drift 40s linear infinite;
}

@keyframes login-grid-drift {
    from { background-position: 0 0, 0 0; }
    to   { background-position: 48px 48px, 48px 48px; }
}

.login-bg-decor {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.login-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.55;
    animation: login-orb-float 18s ease-in-out infinite;
}

.login-orb--1 {
    width: 520px;
    height: 520px;
    top: -12%;
    left: -8%;
    background: radial-gradient(circle, rgba(255, 120, 120, 0.45), rgba(139, 26, 26, 0.1));
    animation-delay: 0s;
}

.login-orb--2 {
    width: 420px;
    height: 420px;
    bottom: -10%;
    right: -5%;
    background: radial-gradient(circle, rgba(200, 50, 50, 0.35), transparent 70%);
    animation-delay: -6s;
    animation-duration: 22s;
}

.login-orb--3 {
    width: 280px;
    height: 280px;
    top: 40%;
    left: 55%;
    background: radial-gradient(circle, rgba(255, 180, 180, 0.2), transparent 70%);
    animation-delay: -12s;
    animation-duration: 16s;
}

@keyframes login-orb-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%       { transform: translate(30px, -20px) scale(1.05); }
    66%       { transform: translate(-20px, 25px) scale(0.95); }
}

/* ── Layout shell ── */
.login-split {
    display: grid;
    grid-template-columns: 1fr;
    place-items: center;
    min-height: 100vh;
    padding: 24px 20px 32px;
    position: relative;
    z-index: 1;
    gap: 0;
}

@media (min-width: 900px) {
    .login-page {
        background: #fff;
        overflow: hidden;
    }

    .login-page::before,
    .login-bg-decor {
        display: none;
    }

    .login-split {
        grid-template-columns: 1fr 1fr;
        place-items: stretch;
        align-items: stretch;
        justify-items: stretch;
        max-width: none;
        margin: 0;
        padding: 0;
        min-height: 100vh;
        height: 100vh;
    }
}

/* ── Hero panel (left half) ── */
.login-image-panel {
    display: none;
}

@media (min-width: 900px) {
    .login-image-panel {
        display: block;
        position: relative;
        width: 100%;
        height: 100%;
        min-height: 100vh;
        overflow: hidden;
        background: #6e1414 url('../image/login/image.jpg') center / cover no-repeat;
    }

    .login-hero-img {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        object-position: center;
        z-index: 0;
    }

    .login-image-overlay {
        position: absolute;
        inset: 0;
        z-index: 1;
        background:
            linear-gradient(180deg, rgba(0, 0, 0, 0.08) 0%, transparent 35%, rgba(74, 10, 10, 0.55) 100%);
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
        padding: 48px 44px;
    }

    .login-image-text h1 {
        color: #fff;
        font-size: clamp(1.75rem, 2.5vw, 2.35rem);
        font-weight: 800;
        line-height: 1.15;
        margin: 0 0 14px;
        letter-spacing: -0.04em;
        text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    }

    .login-image-text p {
        color: rgba(255, 255, 255, 0.82);
        font-size: 1.05rem;
        line-height: 1.65;
        margin: 0;
        max-width: 340px;
    }

    .login-hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 8px 14px;
        margin-bottom: 20px;
        border-radius: 999px;
        background: rgba(255, 255, 255, 0.12);
        backdrop-filter: blur(12px);
        border: 1px solid rgba(255, 255, 255, 0.18);
        color: rgba(255, 255, 255, 0.92);
        font-size: 0.78rem;
        font-weight: 700;
        letter-spacing: 0.06em;
        text-transform: uppercase;
    }

    .login-hero-badge-dot {
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: #4ade80;
        box-shadow: 0 0 8px rgba(74, 222, 128, 0.8);
        animation: login-pulse-dot 2s ease-in-out infinite;
    }

    .login-hero-stats {
        display: flex;
        gap: 28px;
        margin-top: 32px;
        padding-top: 28px;
        border-top: 1px solid rgba(255, 255, 255, 0.15);
    }

    .login-hero-stat strong {
        display: block;
        color: #fff;
        font-size: 1.5rem;
        font-weight: 800;
        letter-spacing: -0.03em;
        line-height: 1;
        margin-bottom: 4px;
    }

    .login-hero-stat span {
        color: rgba(255, 255, 255, 0.6);
        font-size: 0.78rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.05em;
    }
}

@keyframes login-pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.6; transform: scale(0.85); }
}

/* ── Form panel ── */
.login-form-panel {
    width: 100%;
    display: grid;
    place-items: center;
    padding: 0;
}

@media (min-width: 900px) {
    .login-form-panel {
        width: 100%;
        height: 100%;
        min-height: 100vh;
        align-self: stretch;
        display: flex;
        align-items: center;
        justify-content: center;
        background: #fff;
        padding: 40px 48px;
        overflow-y: auto;
    }
}

/* ── Premium card ── */
.portal-login-card {
    width: min(460px, 100%);
    padding: 0;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(24px) saturate(1.4);
    -webkit-backdrop-filter: blur(24px) saturate(1.4);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 28px;
    box-shadow:
        0 0 0 1px rgba(139, 26, 26, 0.06),
        0 1px 0 rgba(255, 255, 255, 0.9) inset,
        0 40px 80px rgba(15, 23, 42, 0.28),
        0 16px 32px rgba(90, 16, 16, 0.18);
    text-align: left;
    position: relative;
    overflow: hidden;
    animation: portal-card-in 0.6s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@media (min-width: 900px) {
    .portal-login-card {
        border-radius: 0;
        width: 100%;
        max-width: 440px;
        min-height: auto;
        display: flex;
        flex-direction: column;
        background: transparent;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        border: none;
        box-shadow: none;
        animation: none;
    }

    .portal-login-card::before,
    .portal-login-card::after {
        display: none;
    }

    .login-card-footer {
        border-top: none;
        padding-top: 8px;
    }
}

.portal-login-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #6e1414, #8B1A1A 30%, #c0392b 60%, #8B1A1A 80%, #6e1414);
    background-size: 200% 100%;
    animation: login-shimmer 4s ease-in-out infinite;
}

.portal-login-card::after {
    content: "";
    position: absolute;
    top: -60%;
    right: -30%;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139, 26, 26, 0.06), transparent 70%);
    pointer-events: none;
}

@keyframes login-shimmer {
    0%, 100% { background-position: 0% 50%; }
    50%       { background-position: 100% 50%; }
}

.portal-login-card-inner {
    padding: 32px 36px 28px;
    position: relative;
    z-index: 1;
    flex: 1;
    display: flex;
    flex-direction: column;
}

@media (max-width: 899px) {
    .portal-login-card {
        border-radius: 28px;
    }

    .login-card-footer {
        border-radius: 0 0 28px 28px;
    }
}

@media (max-width: 480px) {
    .portal-login-card-inner {
        padding: 26px 22px 22px;
    }

    .login-card-footer {
        padding: 14px 22px 20px;
    }
}

/* ── Brand ── */
.portal-login-card .login-brand {
    margin: 0 0 24px;
    gap: 2px;
}

.portal-login-card .login-logo {
    width: 160px;
    max-width: 68%;
    filter: drop-shadow(0 6px 16px rgba(139, 26, 26, 0.12));
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.portal-login-card .login-brand:hover .login-logo {
    transform: scale(1.03);
}

.portal-login-card .login-brand strong {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: #94a3b8;
    font-weight: 700;
}

/* ── Alert ── */
.portal-login-card .alert.danger {
    border-radius: 14px;
    border: 1px solid rgba(220, 38, 38, 0.2);
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    font-size: 0.88rem;
    padding: 12px 14px;
    margin-bottom: 16px;
    animation: login-alert-in 0.35s ease both;
}

@keyframes login-alert-in {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Portal copy ── */
.portal-copy {
    margin: 0 0 24px;
}

.portal-eyebrow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin: 0 auto 10px;
    padding: 5px 12px;
    border-radius: 999px;
    background: linear-gradient(135deg, #fff5f5, #fde8e8);
    border: 1px solid rgba(139, 26, 26, 0.12);
    color: #8B1A1A;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    width: fit-content;
}

.portal-heading {
    font-size: clamp(1.5rem, 4vw, 1.85rem);
    font-weight: 800;
    letter-spacing: -0.045em;
    background: linear-gradient(135deg, #1a0a0a 0%, #5a1010 60%, #8B1A1A 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 10px;
}

.portal-sub {
    font-size: 0.92rem;
    line-height: 1.6;
    color: #64748b;
    max-width: 340px;
    margin: 0 auto;
}

/* ── Portal links ── */
.portal-grid {
    display: grid;
    gap: 10px;
}

.portal-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    border: 1px solid rgba(219, 228, 240, 0.9);
    border-radius: 18px;
    background: linear-gradient(180deg, #ffffff, #fafbfc);
    color: inherit;
    text-decoration: none;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.9) inset,
        0 4px 16px rgba(15, 23, 42, 0.04);
    transition:
        border-color 0.25s,
        background 0.25s,
        transform 0.25s cubic-bezier(0.22, 1, 0.36, 1),
        box-shadow 0.25s;
    overflow: hidden;
    animation: portal-link-in 0.5s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.portal-link:nth-child(1) { animation-delay: 0.08s; }
.portal-link:nth-child(2) { animation-delay: 0.16s; }
.portal-link:nth-child(3) { animation-delay: 0.24s; }

@keyframes portal-link-in {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.portal-link::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--portal-accent, #8B1A1A);
    border-radius: 0 3px 3px 0;
    transform: scaleY(0);
    transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

.portal-link:hover::before,
.portal-link:focus-visible::before {
    transform: scaleY(1);
}

.portal-link:hover {
    border-color: var(--portal-accent, #8B1A1A);
    background: var(--portal-bg, #fff7f7);
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.9) inset,
        0 20px 40px var(--portal-shadow, rgba(139, 26, 26, 0.14));
    transform: translateY(-3px) scale(1.01);
}

.portal-link--student {
    --portal-accent: #8B1A1A;
    --portal-bg: #fff7f7;
    --portal-shadow: rgba(139, 26, 26, 0.14);
    --portal-icon-bg: linear-gradient(145deg, #fff0f0, #fde0e0);
    --portal-icon-color: #8B1A1A;
}

.portal-link--coordinator {
    --portal-accent: #7a1a4a;
    --portal-bg: #fdf5f8;
    --portal-shadow: rgba(122, 26, 74, 0.14);
    --portal-icon-bg: linear-gradient(145deg, #fff0f5, #fce0ea);
    --portal-icon-color: #7a1a4a;
}

.portal-link--partner {
    --portal-accent: #9a5c10;
    --portal-bg: #fffaf2;
    --portal-shadow: rgba(154, 92, 16, 0.14);
    --portal-icon-bg: linear-gradient(145deg, #fff8eb, #fef0d0);
    --portal-icon-color: #9a5c10;
}

.portal-link-icon {
    width: 48px;
    height: 48px;
    flex: 0 0 48px;
    border-radius: 14px;
    background: var(--portal-icon-bg);
    color: var(--portal-icon-color);
    box-shadow:
        0 4px 12px rgba(15, 23, 42, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.3s;
}

.portal-link:hover .portal-link-icon {
    transform: scale(1.08) rotate(-3deg);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.1);
}

.portal-link-title {
    font-size: 0.97rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.portal-link-desc {
    font-size: 0.8rem;
    color: #94a3b8;
}

.portal-link-arrow {
    width: 34px;
    height: 34px;
    background: rgba(248, 250, 252, 0.9);
    border: 1px solid rgba(219, 228, 240, 0.8);
    transition: background 0.25s, transform 0.25s, border-color 0.25s;
}

.portal-link:hover .portal-link-arrow {
    background: var(--portal-bg);
    border-color: var(--portal-accent);
    transform: translateX(4px);
}

/* ── Back link ── */
.portal-back-link {
    margin: 0 0 18px -6px;
    padding: 8px 14px 8px 8px;
    border-radius: 999px;
    font-size: 0.85rem;
    transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

.portal-back-link-icon {
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #fff5f5, #fde8e8);
    border: 1px solid rgba(139, 26, 26, 0.1);
}

/* ── Portal badge ── */
.portal-badge {
    padding: 10px 16px;
    margin: 0 0 20px;
    border-radius: 14px;
    background: linear-gradient(135deg, #fff7f7, #fde8e8);
    border: 1px solid rgba(139, 26, 26, 0.12);
    color: #8B1A1A;
    font-size: 0.88rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    box-shadow: 0 4px 12px rgba(139, 26, 26, 0.06);
}

.portal-badge .dot {
    width: 8px;
    height: 8px;
    background: #8B1A1A;
    box-shadow: 0 0 0 3px rgba(139, 26, 26, 0.2);
    animation: login-pulse-dot 2s ease-in-out infinite;
}

/* ── Form fields ── */
.portal-login-form {
    gap: 18px;
}

.portal-field {
    display: grid;
    gap: 8px;
}

.portal-field-label {
    font-size: 0.88rem;
    font-weight: 700;
    color: #334155;
    letter-spacing: -0.01em;
}

.portal-field-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.portal-field-icon {
    position: absolute;
    left: 16px;
    z-index: 2;
    width: 20px;
    height: 20px;
    color: #94a3b8;
    pointer-events: none;
    transition: color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.portal-field-icon svg {
    width: 20px;
    height: 20px;
    display: block;
    fill: none;
    stroke: currentColor;
    flex: none;
}

.portal-field-wrap input {
    width: 100%;
    border: 1.5px solid #e2e8f0;
    border-radius: 14px;
    background: linear-gradient(180deg, #ffffff, #f8fafc);
    color: var(--text);
    padding: 14px 16px 14px 48px;
    min-height: 52px;
    font: inherit;
    font-size: 0.95rem;
    outline: none;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.9) inset,
        0 2px 6px rgba(15, 23, 42, 0.03);
    transition:
        border-color 0.2s,
        box-shadow 0.2s,
        background 0.2s,
        transform 0.2s;
}

.portal-field-wrap input::placeholder {
    color: #cbd5e1;
}

.portal-field-wrap input:focus {
    border-color: rgba(139, 26, 26, 0.6);
    background: #fff;
    box-shadow:
        0 0 0 4px rgba(139, 26, 26, 0.1),
        0 1px 0 rgba(255, 255, 255, 0.9) inset;
    transform: translateY(-1px);
}

.portal-field-wrap:focus-within .portal-field-icon {
    color: #8B1A1A;
}

/* ── Sign in button ── */
.portal-login-form .btn-primary {
    width: 100%;
    min-height: 54px;
    margin: 8px 0 0;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, #6e1414 0%, #8B1A1A 40%, #a32020 100%);
    background-size: 200% 200%;
    color: #fff;
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.15) inset,
        0 12px 28px rgba(139, 26, 26, 0.35);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform 0.25s, box-shadow 0.25s, background-position 0.4s;
}

.portal-login-form .btn-primary::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, transparent 40%, rgba(255, 255, 255, 0.18) 50%, transparent 60%);
    transform: translateX(-100%);
    transition: transform 0.5s;
}

.portal-login-form .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.2) inset,
        0 18px 36px rgba(139, 26, 26, 0.42);
    background-position: 100% 100%;
}

.portal-login-form .btn-primary:hover::before {
    transform: translateX(100%);
}

.portal-login-form .btn-primary:active {
    transform: translateY(0);
}

/* ── Footer ── */
.login-card-footer {
    margin-top: auto;
    padding: 16px 36px 24px;
    border-top: 1px solid rgba(219, 228, 240, 0.6);
    text-align: center;
    position: relative;
    z-index: 1;
}

.login-card-footer p {
    margin: 0;
    font-size: 0.75rem;
    color: #94a3b8;
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* ── Stage transitions ── */
.portal-stage {
    min-height: 280px;
    flex: 0 0 auto;
}

.portal-view.is-active {
    animation: portal-view-in 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes portal-view-in {
    from { opacity: 0; transform: translateX(12px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
    .login-orb,
    .login-page::before,
    .portal-login-card::before,
    .portal-badge .dot,
    .login-hero-badge-dot {
        animation: none;
    }

    .portal-link,
    .portal-view.is-active {
        animation: none;
    }

    .portal-link:hover {
        transform: none;
    }
}