/* ============================================
   THEME DEFAULT — Healing School Link Shortener
   A refined, warm, and professional aesthetic
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=Outfit:wght@300;400;500;600;700&display=swap');

/* --- CSS Variables --- */
:root {
    --color-bg: #0f1923;
    --color-bg-overlay: rgba(15, 25, 35, 0.85);
    --color-card: #ffffff;
    --color-card-shadow: rgba(0, 0, 0, 0.12);
    --color-primary: #1a6b4e;
    --color-primary-hover: #14553e;
    --color-primary-light: rgba(26, 107, 78, 0.08);
    --color-accent: #e8b931;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;
    --color-input-bg: #f8fafc;
    --color-input-focus: #f0fdf4;
    --font-display: 'Outfit', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --shadow-soft: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-elevated: 0 20px 60px rgba(0, 0, 0, 0.15), 0 8px 20px rgba(0, 0, 0, 0.08);
}

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html.body-full-height,
html.body-full-height body {
    height: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    line-height: 1.6;
    background: var(--color-bg);
    background-image:
        radial-gradient(ellipse at 20% 50%, rgba(26, 107, 78, 0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(232, 185, 49, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(26, 107, 78, 0.1) 0%, transparent 40%);
    background-attachment: fixed;
}

/* Subtle animated grain texture */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

/* --- Login Container --- */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

/* --- Login Box (Card) --- */
.login-box {
    width: 100%;
    max-width: 480px;
    background: var(--color-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-elevated);
    overflow: hidden;
    position: relative;
}

/* Decorative top accent bar */
.login-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
    background-size: 200% 100%;
    animation: shimmer 4s ease-in-out infinite;
}

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

/* --- Logo Area --- */
.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 2rem 0.5rem;
    position: relative;
}

.login-logo::after {
    content: '🔗';
    font-size: 2.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: var(--color-primary-light);
    border-radius: 50%;
    border: 2px solid rgba(26, 107, 78, 0.12);
}

/* --- Login Body --- */
.login-body {
    padding: 1rem 2.5rem 2rem;
}

/* --- Title --- */
.login-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--color-text);
    text-align: center;
    margin-bottom: 1.75rem;
    letter-spacing: -0.01em;
}

.login-title strong {
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary) 0%, #2a8a68 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- Form --- */
.form-horizontal {
    width: 100%;
}

.form-group {
    margin-bottom: 1rem;
}

.col-md-12,
.col-md-6 {
    width: 100%;
}

label {
    display: block;
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: 0.4rem;
    letter-spacing: 0.02em;
}

/* --- Inputs --- */
.form-control {
    width: 100%;
    padding: 0.85rem 1.1rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-text);
    background: var(--color-input-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    outline: none;
    transition: all 0.25s ease;
    appearance: none;
    -webkit-appearance: none;
}

.form-control::placeholder {
    color: #94a3b8;
    font-weight: 400;
}

.form-control:hover {
    border-color: #cbd5e1;
    background: #fff;
}

.form-control:focus {
    border-color: var(--color-primary);
    background: var(--color-input-focus);
    box-shadow: 0 0 0 3px rgba(26, 107, 78, 0.1);
}

/* Result field special styling */
#resultDiv {
    background: linear-gradient(135deg, #f0fdf4 0%, #fefce8 100%);
    border-style: dashed;
    border-color: #c6dbd0;
    font-weight: 500;
    color: var(--color-primary);
    text-align: center;
    letter-spacing: 0.01em;
}

#resultDiv:focus {
    border-style: solid;
    border-color: var(--color-primary);
}

#resultDiv::placeholder {
    color: #86b89a;
    font-weight: 400;
    font-style: italic;
}

/* --- Button --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    padding: 0.85rem 2rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.12) 0%, transparent 50%);
    pointer-events: none;
}

.btn-info {
    background: linear-gradient(135deg, var(--color-primary) 0%, #1d7a58 50%, var(--color-primary) 100%);
    background-size: 200% 200%;
    color: #fff;
    box-shadow: 0 4px 14px rgba(26, 107, 78, 0.35), inset 0 1px 0 rgba(255,255,255,0.1);
}

.btn-info:hover {
    background-position: 100% 100%;
    box-shadow: 0 6px 20px rgba(26, 107, 78, 0.45), inset 0 1px 0 rgba(255,255,255,0.15);
    transform: translateY(-1px);
}

.btn-info:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(26, 107, 78, 0.3);
}

.btn-block {
    display: flex;
    width: 100%;
}

/* --- Footer --- */
.login-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.1rem 2.5rem;
    background: #f8fafc;
    border-top: 1px solid var(--color-border);
    font-family: var(--font-body);
    font-size: 0.78rem;
    color: var(--color-text-muted);
    letter-spacing: 0.01em;
}

.pull-left {
    float: none;
}

.pull-right {
    float: none;
}

/* --- Animation --- */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animated {
    animation-duration: 0.7s;
    animation-fill-mode: both;
    animation-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.fadeInDown {
    animation-name: fadeInDown;
}

/* --- Responsive --- */
@media (max-width: 540px) {
    .login-container {
        padding: 1rem;
        align-items: flex-start;
        padding-top: 3rem;
    }

    .login-box {
        border-radius: var(--radius-md);
    }

    .login-body {
        padding: 1rem 1.5rem 1.5rem;
    }

    .login-footer {
        padding: 1rem 1.5rem;
    }

    .login-title {
        font-size: 1.15rem;
    }
}