@layer components {
    /* =========================================
       Auth Layout & Container
       ========================================= */
    .auth-layout {
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        background-color: var(--bg-main);
        background-image: linear-gradient(
                to bottom right,
                var(--ocean-950),
                color-mix(in srgb, var(--ocean-900) 80%, black)
        );
        position: relative;
        overflow: hidden;
    }

    /* Animated background accent */
    .auth-layout::before {
        content: "";
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(
                circle at center,
                var(--avant-teal-dim) 0%,
                transparent 50%
        );
        opacity: 0.4;
        animation: auth-pulse 10s ease-in-out infinite alternate;
        pointer-events: none;
    }

    @keyframes auth-pulse {
        0% { transform: scale(1); opacity: 0.3; }
        100% { transform: scale(1.1); opacity: 0.5; }
    }

    .auth-card {
        position: relative;
        width: 100%;
        max-width: 40ch; /* Content-driven width */
        padding: 3rem;

        /* Glassmorphism */
        background: color-mix(in srgb, var(--bg-card) 40%, transparent);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--border-color);
        border-radius: 1.5rem;
        box-shadow:
                0 25px 50px -12px rgba(0, 0, 0, 0.5),
                0 0 0 1px color-mix(in srgb, var(--text-main) 5%, transparent) inset;

        display: flex;
        flex-direction: column;
        gap: 2rem;
        z-index: 10;
    }

    /* =========================================
       Split-Screen Layout
       ========================================= */
    .auth-split {
        display: flex;
        min-height: 100vh;
        width: 100%;
        background-color: var(--bg-main);
    }

    /* Visual / Video Side */
    .auth-split__visual {
        display: none;
        position: relative;
        width: 50%;
        background-color: var(--bg-main);
        overflow: hidden;
    }

    .auth-split__video {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .auth-split__visual::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(5, 10, 20, 0.85), rgba(5, 10, 20, 0.15));
        z-index: 1;
    }

    .auth-split__visual-content {
        position: relative;
        z-index: 2;
        height: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding: 3rem 3.5rem;
        margin-top: -10%; /* Shift 10% above true center */
    }

    .auth-split__quote {
        font-family: 'Lora', Georgia, serif;
        font-style: italic;
        font-size: clamp(1.25rem, 2.2vw, 1.75rem);
        font-weight: 400;
        line-height: 1.5;
        letter-spacing: 0.01em;
        color: var(--text-main);
        margin: 0 0 1.25rem;
        opacity: 0.9;
        text-shadow: 0 1px 12px rgba(0, 0, 0, 0.3);
    }

    .auth-split__author {
        font-family: var(--font-sans);
        font-size: 0.8rem;
        font-weight: 400;
        color: var(--text-muted);
        letter-spacing: 0.04em;
    }

    /* Form Side */
    .auth-split__form {
        flex: 1;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 2rem;
        background-color: var(--bg-main);
        background-image: linear-gradient(
                to bottom right,
                var(--ocean-950),
                color-mix(in srgb, var(--ocean-900) 80%, black)
        );
        position: relative;
        overflow: hidden;
    }

    .auth-split__form::before {
        content: "";
        position: absolute;
        top: -50%;
        right: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(
                circle at center,
                var(--avant-teal-dim) 0%,
                transparent 50%
        );
        opacity: 0.3;
        animation: auth-pulse 10s ease-in-out infinite alternate;
        pointer-events: none;
    }

    .auth-split__form-inner {
        position: relative;
        z-index: 10;
        width: 100%;
        max-width: 400px;
    }

    @media (min-width: 1024px) {
        .auth-split__visual {
            display: block;
        }

        .auth-split__form {
            width: 50%;
            flex: none;
        }
    }

    /* =========================================
       Typography & Headings
       ========================================= */
    .auth-header {
        text-align: center;
        margin-bottom: 1rem;
    }

    .auth-header__logo {
        display: block;
        margin: 0 auto 1.5rem;
        color: var(--accent-primary);
        transition: transform 0.3s ease;
    }

    .auth-header__logo:hover {
        transform: scale(1.05);
    }

    .auth-header h1 {
        font-family: var(--font-display); /* Serif / Display font */
        font-size: 2.5rem;
        font-weight: 400;
        color: var(--text-main);
        letter-spacing: 0.02em;
        margin-bottom: 0.5rem;
    }

    .auth-header p {
        color: var(--text-muted);
        font-size: 0.875rem;
        font-family: var(--font-sans);
    }

    /* =========================================
       Form Elements
       ========================================= */
    .auth-form {
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
    }

    .form-group {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
        position: relative;
    }

    .form-group label {
        font-family: var(--font-sans);
        font-size: 0.75rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.1em;
        color: var(--text-muted);
        transition: color 0.2s ease;
    }

    .form-input {
        width: 100%;
        background: color-mix(in srgb, var(--bg-card) 60%, transparent); /* Darker filled background */
        border: none;
        border-bottom: 2px solid var(--border-color);
        border-radius: 0.25rem 0.25rem 0 0;
        padding: 0.75rem 1rem;
        color: var(--text-main);
        font-family: var(--font-sans);
        font-size: 1rem;
        transition: all 0.2s ease;
    }

    .form-input:focus {
        outline: none;
        background: color-mix(in srgb, var(--bg-card) 90%, transparent);
        border-bottom-color: var(--accent-primary);
        box-shadow: 0 4px 12px color-mix(in srgb, var(--accent-primary) 10%, transparent);
    }

    .form-input:focus + label {
        color: var(--accent-primary);
    }

    .form-input::placeholder {
        color: rgba(148, 163, 184, 0.3);
    }

    /* =========================================
       Actions & Buttons
       ========================================= */
    .auth-actions {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        margin-top: 1rem;
    }

    .btn-auth {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        padding: 1rem;

        background-color: var(--accent-primary);
        color: var(--bg-main); /* Dark text on teal */

        font-family: var(--font-display);
        font-size: 1.125rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.1em;
        border: none;
        border-radius: 0.25rem;
        cursor: pointer;
        transition: all 0.2s ease;
        text-decoration: none;
        box-shadow: 0 0 20px color-mix(in srgb, var(--accent-primary) 20%, transparent);
    }

    .btn-auth:hover {
        transform: translateY(-2px);
        box-shadow: 0 0 30px color-mix(in srgb, var(--accent-primary) 40%, transparent);
        background-color: var(--text-main); /* optional hover effect */
    }

    .auth-links {
        display: flex;
        justify-content: space-between;
        font-size: 0.75rem;
        margin-top: 0.5rem;
    }

    .link-subtle {
        color: var(--text-muted);
        text-decoration: none;
        transition: color 0.2s ease;
        border-bottom: 1px solid transparent;
    }

    .link-subtle:hover {
        color: var(--accent-primary);
        border-bottom-color: var(--accent-primary);
    }

    .link-subtle--inline {
        color: var(--accent-primary);
        border-bottom: 1px solid color-mix(in srgb, var(--accent-primary) 40%, transparent);
    }

    /* ─── Checkbox Group ─── */
    .form-group--checkbox {
        flex-direction: row;
        align-items: flex-start;
        gap: 0.6rem;
    }

    .form-checkbox {
        width: 1rem;
        height: 1rem;
        margin-top: 0.15rem;
        accent-color: var(--accent-primary);
        flex-shrink: 0;
        cursor: pointer;
    }

    .form-checkbox-label {
        font-size: 0.75rem !important;
        font-weight: 400 !important;
        text-transform: none !important;
        letter-spacing: 0 !important;
        color: var(--text-muted);
        line-height: 1.5;
        cursor: pointer;
    }
}