@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    --primary: #0F172A;
    --primary-light: #1E293B;
    --accent: #6366F1; /* Indigo 500 */
    --accent-hover: #4F46E5; /* Indigo 600 */
    --accent-glow: rgba(99, 102, 241, 0.4);
    
    --bg-body: #0F172A; /* Dark mode by default for login for WOW effect */
    --card-bg: #1E293B;
    
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    
    --border-color: #334155;
    --input-bg: #0F172A;
    
    --shadow-lg: 0 25px 50px -12px rgb(0 0 0 / 0.5);
}

[data-bs-theme="light"] {
    --bg-body: #F8FAFC;
    --card-bg: #FFFFFF;
    
    --text-main: #0F172A;
    --text-muted: #64748B;
    
    --border-color: #E2E8F0;
    --input-bg: #F1F5F9;
    
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.05), 0 8px 10px -6px rgb(0 0 0 / 0.05);
    --accent-glow: rgba(99, 102, 241, 0.2);
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-body);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    overflow: hidden;
    transition: background-color 0.4s ease;
}

/* Background animated element */
.bg-blob {
    position: absolute;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--accent-glow) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.8;
}

/* Hide elements initially to prevent FOUC, GSAP will show them */
.login-card {
    opacity: 0;
    visibility: hidden;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 440px;
    padding: 48px;
    position: relative;
    z-index: 10;
}

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-header h2 {
    font-weight: 800;
    font-size: 28px;
    color: var(--text-main);
    margin-top: 24px;
    letter-spacing: -0.5px;
}

.login-header p {
    color: var(--text-muted);
    font-size: 15px;
    font-weight: 500;
}

.form-label {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-main);
    margin-bottom: 8px;
}

.input-group {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: border-color 0.3s, box-shadow 0.3s, background-color 0.3s;
    overflow: hidden;
}

.input-group:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-glow);
    background-color: var(--card-bg);
}

.input-group-text {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding-left: 20px;
}

.input-group:focus-within .input-group-text {
    color: var(--accent);
}

.form-control {
    background: transparent;
    border: none;
    color: var(--text-main);
    padding: 14px 20px 14px 10px;
    font-size: 15px;
    font-weight: 500;
}

.form-control:focus {
    box-shadow: none;
    background: transparent;
    color: var(--text-main);
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 0.5;
}

.btn-primary {
    background-color: var(--accent);
    color: #fff;
    border: none;
    border-radius: 12px;
    padding: 14px;
    font-weight: 700;
    font-size: 16px;
    width: 100%;
    margin-top: 16px;
    /* Do NOT use transition: all, it breaks GSAP */
    transition: background-color 0.3s, box-shadow 0.3s; 
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    box-shadow: 0 10px 20px -10px var(--accent);
}

.theme-switch {
    position: absolute;
    top: 24px;
    right: 24px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
    z-index: 20;
}

.theme-switch:hover {
    color: var(--text-main);
    border-color: var(--text-muted);
}

.logo-dark-mode { display: inline-block !important; }
.logo-light-mode { display: none !important; }

[data-bs-theme="light"] .logo-dark-mode { display: none !important; }
[data-bs-theme="light"] .logo-light-mode { display: inline-block !important; }