/*===== GOOGLE FONTS =====*/
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

/*===== VARIABLES CSS =====*/
:root {
    --first-color:   #0d0d0d;
    --accent-color:  #FFD700;
    --light-green:   #7cfc7c;
    --text-color:    #6b7280;
    --text-muted:    #9ca3af;
    --bg-body:       #0f0f14;
    --card-bg:       rgba(22, 22, 32, 0.85);
    --card-border:   rgba(255, 215, 0, 0.12);
    --input-border:  rgba(255, 255, 255, 0.12);
    --input-focus:   rgba(255, 215, 0, 0.6);
    --body-text:     #e5e7eb;
    --bubble-1:      rgba(255, 215, 0, 0.22);
    --bubble-2:      rgba(124, 252, 124, 0.16);

    --body-font:        'Inter', sans-serif;
    --big-font-size:    1.85rem;
    --normal-font-size: 0.9375rem;
    --smaller-font-size:0.8125rem;

    --shadow-card: 0 25px 60px rgba(0, 0, 0, 0.6), 0 0 0 1px var(--card-border);
    --shadow-btn:  0 8px 24px rgba(255, 215, 0, 0.35);
    --radius:      1rem;
}

/*===== LIGHT THEME =====*/
[data-theme='light'] {
    --first-color:   #f5f5f0;
    --accent-color:  #b8860b;
    --light-green:   #2e7d32;
    --text-color:    #4b5563;
    --text-muted:    #6b7280;
    --bg-body:       #f5f5f0;
    --card-bg:       rgba(255, 255, 255, 0.92);
    --card-border:   rgba(184, 134, 11, 0.18);
    --input-border:  rgba(0, 0, 0, 0.14);
    --input-focus:   rgba(184, 134, 11, 0.6);
    --body-text:     #111111;
    --bubble-1:      rgba(184, 134, 11, 0.18);
    --bubble-2:      rgba(34, 139, 34, 0.10);

    --shadow-card: 0 12px 35px rgba(0, 0, 0, 0.10), 0 0 0 1px var(--card-border);
    --shadow-btn:  0 8px 24px rgba(184, 134, 11, 0.30);
}

@media screen and (min-width: 768px) {
    :root {
        --big-font-size:    2.1rem;
        --normal-font-size: 1rem;
    }
}

/*===== RESET =====*/
*, ::before, ::after { box-sizing: border-box; }

body {
    margin: 0;
    padding: 0;
    font-family: var(--body-font);
    background: var(--bg-body);
    color: var(--body-text);
    min-height: 100vh;
    transition: background-color 0.4s ease, color 0.4s ease;
}

h1 { margin: 0; }
a  { text-decoration: none; }
img { max-width: 100%; height: auto; }

/*===== LAYOUT =====*/
.l-form {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    /* theme-aware radial gradient backdrop */
    background:
        radial-gradient(ellipse at 20% 20%, var(--bubble-1) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 80%, var(--bubble-2) 0%, transparent 60%),
        var(--bg-body);
    transition: background 0.4s ease;
}

/*===== ANIMATED BUBBLES =====*/
.shape1,
.shape2 {
    position: absolute;
    border-radius: 50%;
    z-index: 0;
    filter: blur(2px);
    pointer-events: none;
}
.shape1 {
    width: 45vw; height: 45vw;
    max-width: 480px; max-height: 480px;
    min-width: 180px; min-height: 180px;
    top: -12vw; left: -10vw;
    background: radial-gradient(circle, var(--bubble-1) 0%, transparent 70%);
    animation: float1 9s ease-in-out infinite;
}
.shape2 {
    width: 38vw; height: 38vw;
    max-width: 420px; max-height: 420px;
    min-width: 140px; min-height: 140px;
    bottom: -12vw; right: -10vw;
    background: radial-gradient(circle, var(--bubble-2) 0%, transparent 70%);
    animation: float2 12s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: translateY(0) translateX(0) scale(1); }
    50%       { transform: translateY(30px) translateX(18px) scale(1.04); }
}
@keyframes float2 {
    0%, 100% { transform: translateY(0) translateX(0) scale(1); }
    50%       { transform: translateY(-28px) translateX(-16px) scale(1.06); }
}

/*===== GLASS FORM CARD =====*/
.form {
    position: relative;
    z-index: 1;
    display: grid;
    justify-content: center;
    align-items: center;
    width: 100%;
    padding: 1.5rem;
}

.form__content {
    width: 340px;
    background: var(--card-bg);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    box-shadow: var(--shadow-card);
    animation: slideUp 0.45s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(28px); }
    to   { opacity: 1; transform: translateY(0); }
}

/*===== HIDDEN SVG IMAGE (shown on desktop) =====*/
.form__img { display: none; }

/*===== TITLE =====*/
.form__title {
    font-size: var(--big-font-size);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.75rem;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--body-text) 30%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/*===== FORM DIVIDERS (input rows) =====*/
.form__div {
    position: relative;
    display: grid;
    grid-template-columns: 36px 1fr;
    align-items: center;
    margin-bottom: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--input-border);
    transition: border-color 0.25s;
}
.form__div.focus {
    border-bottom-color: var(--accent-color);
}
.form__div-one {
    margin-bottom: 2.5rem;
}

/*===== ICON =====*/
.form__icon {
    font-size: 1.35rem;
    color: var(--text-muted);
    transition: color 0.25s;
    line-height: 1;
}
.form__div.focus .form__icon {
    color: var(--accent-color);
}

/*===== LABEL =====*/
.form__div-input { position: relative; }

.form__label {
    display: block;
    position: absolute;
    left: 0.6rem;
    top: 0.3rem;
    font-size: var(--normal-font-size);
    color: var(--text-muted);
    pointer-events: none;
    transition: top 0.25s, font-size 0.25s, color 0.25s;
}
.form__div.focus .form__label,
.form__div.filled .form__label {
    top: -1.4rem;
    font-size: 0.78rem;
    color: var(--accent-color);
    font-weight: 500;
}

/*===== INPUT =====*/
.form__input {
    width: 100%;
    border: none;
    outline: none;
    background: transparent;
    padding: 0.4rem 0.6rem;
    font-size: 1rem;
    font-family: var(--body-font);
    color: #f3f4f6;
    caret-color: var(--accent-color);
}
.form__input::placeholder { color: transparent; }

/*===== FORGOT LINK =====*/
.form__forgot {
    display: block;
    text-align: right;
    margin-bottom: 1.75rem;
    font-size: var(--smaller-font-size);
    color: var(--text-muted);
    font-weight: 500;
    transition: color 0.25s;
}
.form__forgot:hover { color: var(--accent-color); }

/*===== SUBMIT BUTTON =====*/
.form__button {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: var(--normal-font-size);
    font-family: var(--body-font);
    font-weight: 600;
    letter-spacing: 0.02em;
    border: none;
    outline: none;
    margin-bottom: 1.5rem;
    border-radius: 0.6rem;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--accent-color) 0%, #e6c000 100%);
    color: #0d0d0d;
    box-shadow: var(--shadow-btn);
    transition: transform 0.2s, box-shadow 0.2s;
}
.form__button::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.25) 50%, transparent 100%);
    transform: translateX(-100%);
    transition: transform 0.55s ease;
}
.form__button:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(255, 215, 0, 0.5);
}
.form__button:hover::after {
    transform: translateX(100%);
}
.form__button:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
}

/*===== SWITCH LINK =====*/
.form__switch {
    display: block;
    text-align: center;
    font-size: var(--smaller-font-size);
    color: var(--text-muted);
}
.form__switch a {
    color: var(--accent-color);
    font-weight: 600;
    transition: opacity 0.2s;
}
.form__switch a:hover { opacity: 0.8; }

/*===== MESSAGES =====*/
.error-msg {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: var(--smaller-font-size);
    margin-bottom: 1.25rem;
    border: 1px solid rgba(239, 68, 68, 0.25);
    line-height: 1.5;
    animation: fadeIn 0.3s ease;
}
.error-msg::before {
    content: '⚠';
    font-size: 0.9rem;
    flex-shrink: 0;
    margin-top: 0.05rem;
}

.success-msg {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    background: rgba(124, 252, 124, 0.08);
    color: var(--light-green);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: var(--smaller-font-size);
    margin-bottom: 1.25rem;
    border: 1px solid rgba(124, 252, 124, 0.2);
    line-height: 1.5;
    animation: fadeIn 0.3s ease;
}
.success-msg::before {
    content: '✓';
    font-size: 0.9rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 0.05rem;
}

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

/*===== DIVIDER / INFO TEXT (OTP pages) =====*/
.form__content p[style] {
    color: var(--text-muted) !important;
    font-size: var(--smaller-font-size);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}
.form__content p strong {
    color: var(--accent-color);
    font-weight: 600;
}

/*===== DESKTOP LAYOUT =====*/
@media screen and (min-width: 968px) {
    .form {
        grid-template-columns: 1.4fr 1fr;
        gap: 3rem;
        padding: 0 3rem;
        max-width: 1000px;
        margin: 0 auto;
    }
    .form__content {
        width: 360px;
        padding: 2.75rem 2.25rem;
    }
    .form__img {
        display: block;
        width: 520px;
        justify-self: center;
        filter: drop-shadow(0 0 40px rgba(255, 215, 0, 0.15));
        animation: float1 9s ease-in-out infinite;
    }
}

/*===== MOBILE RESPONSIVE =====*/
/* Small phones: ≤ 480px */
@media screen and (max-width: 480px) {
    .l-form {
        align-items: flex-start;
        padding: 2rem 0;
    }

    .form {
        width: 100%;
        padding: 0 1rem;
    }

    .form__content {
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
        padding: 2rem 1.5rem;
    }

    .form__title {
        font-size: 1.6rem;
        margin-bottom: 1.5rem;
    }

    /* Keep touch targets comfortable */
    .form__button {
        padding: 0.8rem 1rem;
        font-size: 1rem;
    }

    /* Slightly reduce bubble size so they don't crowd the form */
    .shape1 {
        width: 55vw; height: 55vw;
        top: -18vw; left: -18vw;
    }
    .shape2 {
        width: 50vw; height: 50vw;
        bottom: -18vw; right: -18vw;
    }
}

/* Very small phones: ≤ 360px */
@media screen and (max-width: 360px) {
    .form__content {
        padding: 1.75rem 1.25rem;
    }

    .form__title {
        font-size: 1.4rem;
    }

    .form__div {
        grid-template-columns: 30px 1fr;
    }
}


/* ===== Utility classes (avoid inline style attrs for strict CSP) ===== */
.form__content--wide { max-width: 480px; }
.form__content--medium { max-width: 420px; }
.form-button--top-gap { margin-top: 1.5rem; }
.form-button--top-gap-sm { margin-top: 1rem; }
.form-button--danger { background: #c0392b; }
.form-help { color: var(--text-color); font-size: 0.85rem; margin-bottom: 1.5rem; }
.form-help-sm { color: var(--text-color); font-size: 0.75rem; margin-top: 0.4rem; opacity: 0.8; }
.form-help-md { color: var(--text-color); font-size: 0.9rem; }
.form-input--otp { letter-spacing: 2px; }
.success-msg--left { text-align: left; }
.recovery-codes-pre { background: rgba(0, 0, 0, 0.2); padding: 0.75rem; border-radius: 6px; margin-top: 0.5rem; font-size: 0.9rem; line-height: 1.6; }
.qr-wrap { text-align: center; margin: 1rem 0; }
.qr-img { background: #fff; padding: 8px; border-radius: 8px; }
.totp-secret-note { color: var(--text-color); font-size: 0.78rem; opacity: 0.85; }
.totp-secret-code { display: block; word-break: break-all; margin-top: 0.4rem; }
.form-back-link { text-align: center; margin-top: 1.5rem; }
.form-back-link--sm { text-align: center; margin-top: 1rem; }
.form-back-link a { color: var(--text-color); }

/*===== THEME TOGGLE BUTTON (top-right corner on auth pages) =====*/
.auth-theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 100;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--card-border);
    background: var(--card-bg);
    color: var(--accent-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.4s ease, color 0.4s ease;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.auth-theme-toggle:hover {
    transform: rotate(20deg);
    border-color: var(--accent-color);
}
.auth-theme-toggle i { line-height: 1; }