/* ======== CORE VARIABLES ======== */
:root {
    /* Light Theme (Ultra-Clean slate/glass) */
    --bg-color: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.85); /* Glass feel */
    --text-color: #0f172a;
    --text-muted: #64748b;
    --primary: #4f46e5;       /* Vibrant Indigo */
    --primary-hover: #4338ca;
    --primary-light: rgba(79, 70, 229, 0.1);
    --success: #10b981;
    --success-light: rgba(16, 185, 129, 0.1);
    --danger: #ef4444;
    --danger-light: rgba(239, 68, 68, 0.1);
    --warning: #f59e0b;
    --warning-light: rgba(245, 158, 11, 0.1);
    --border: rgba(148, 163, 184, 0.2);
    --input-bg: #ffffff;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

[data-theme='dark'] {
    /* Dark Theme (Premium Deep Space/Neon) */
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7); /* Translucent depth */
    --text-color: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #06b6d4;       /* Glowing Cyan */
    --primary-hover: #0891b2;
    --primary-light: rgba(6, 182, 212, 0.15);
    --success: #10b981;
    --success-light: rgba(16, 185, 129, 0.15);
    --danger: #f43f5e;
    --danger-light: rgba(244, 63, 94, 0.15);
    --warning: #f59e0b;
    --warning-light: rgba(245, 158, 11, 0.15);
    --border: rgba(51, 65, 85, 0.5);
    --input-bg: #0f172a;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
}

/* ======== ANIMATIONS ======== */
@keyframes fadeUp {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes pulseGlow {
    0% { box-shadow: 0 0 0 0 rgba(var(--primary-rgb), 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(var(--primary-rgb), 0); }
    100% { box-shadow: 0 0 0 0 rgba(var(--primary-rgb), 0); }
}

/* ======== GLOBAL ======== */
body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    transition: background-color 0.4s ease, color 0.4s ease;
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6, .navbar-brand {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
}

/* ======== NAVBAR ======== */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1.2rem 3rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
    transition: background-color 0.4s ease;
}

.navbar-brand {
    font-size: 1.7rem;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-links a, .nav-links button {
    margin-left: 1.5rem;
    color: var(--text-color);
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
    transition: color 0.2s ease, transform 0.2s;
}

.nav-links a:hover, .nav-links button:hover {
    color: var(--primary);
    transform: translateY(-1px);
}

/* ======== LAYOUT ======== */
.container {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 1.5rem;
    animation: fadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* ======== CARDS ======== */
.card {
    background-color: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.card-title {
    margin-top: 0;
    color: var(--primary);
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
}

/* ======== FORMS & INPUTS ======== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-color);
}

.form-control {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background-color: var(--input-bg);
    color: var(--text-color);
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* ======== BUTTONS ======== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.8rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: 'Outfit', sans-serif;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff !important;
    box-shadow: 0 4px 6px -1px var(--primary-light);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px var(--primary-light);
}

.btn-success {
    background-color: var(--success);
    color: #ffffff !important;
}

.btn-success:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.btn-danger {
    background-color: var(--danger);
    color: #ffffff !important;
}

.btn-danger:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary);
    color: var(--primary) !important;
}

.btn-outline:hover {
    background-color: var(--primary-light);
}

/* ======== TABLES ======== */
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-bottom: 1rem;
}

.table th {
    background-color: rgba(0,0,0,0.02);
    font-family: 'Outfit', sans-serif;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    padding: 1.2rem 1rem;
    border-bottom: 2px solid var(--border);
}

[data-theme='dark'] .table th {
    background-color: rgba(255,255,255,0.02);
}

.table td {
    padding: 1.2rem 1rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.table tbody tr {
    transition: background-color 0.2s ease;
}

.table tbody tr:hover {
    background-color: var(--primary-light);
}

/* ======== ALERTS ======== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    animation: fadeUp 0.4s ease forwards;
}

.alert-success { background-color: var(--success-light); color: var(--success); border: 1px solid var(--success); }
.alert-danger { background-color: var(--danger-light); color: var(--danger); border: 1px solid var(--danger); }
.alert-warning { background-color: var(--warning-light); color: var(--warning); border: 1px solid var(--warning); }
.alert-info { background-color: var(--primary-light); color: var(--primary); border: 1px solid var(--primary); }

/* ======== GRIDS & TIMELINE ======== */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }

.timeline {
    border-left: 3px solid var(--primary);
    padding-left: 2rem;
    margin-left: 1rem;
}

.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: transform 0.3s ease;
}

.timeline-item:hover {
    transform: translateX(5px);
    border-color: var(--primary);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.7rem;
    top: 1.5rem;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--bg-color);
    border: 4px solid var(--primary);
    z-index: 1;
}

/* ======== SPECIAL COMPONENTS ======== */
.plan-card {
    border-left: 5px solid var(--primary);
    background-color: var(--primary-light);
}

/* ======== DATE/TIME INPUT CALENDAR ICON FIX ======== */
input[type="date"],
input[type="datetime-local"],
input[type="month"],
input[type="time"] {
    color-scheme: light;
}

[data-theme='dark'] input[type="date"],
[data-theme='dark'] input[type="datetime-local"],
[data-theme='dark'] input[type="month"],
[data-theme='dark'] input[type="time"] {
    color-scheme: dark;
}

/* Force calendar icon visible in dark mode */
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="datetime-local"]::-webkit-calendar-picker-indicator {
    filter: invert(0);
    cursor: pointer;
    opacity: 0.8;
}

[data-theme='dark'] input[type="date"]::-webkit-calendar-picker-indicator,
[data-theme='dark'] input[type="datetime-local"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
    opacity: 0.9;
}

/* ======== AI ANALYSIS READABILITY SPACING ======== */

/* Cards in AI section get a bit more internal padding */
.card p {
    line-height: 1.8;
    margin-bottom: 0.9rem;
}

.card ul {
    line-height: 1.8;
}

.card ul li {
    margin-bottom: 0.65rem;
    padding-left: 0.2rem;
}

/* Strengths / Weaknesses list items */
.card ul li + li {
    border-top: 1px solid var(--border);
    padding-top: 0.55rem;
}

/* Section headings inside cards */
.card h3 {
    margin-bottom: 1.2rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

/* ======== MOBILE RESPONSIVENESS ======== */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        padding: 1rem 1.5rem;
        gap: 1.2rem;
        text-align: center;
    }
    
    .navbar-brand {
        font-size: 1.5rem;
    }

    .nav-links {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.8rem;
    }

    .nav-links a, .nav-links button, .nav-links span {
        margin-left: 0;
        margin-bottom: 0px;
        padding: 0.5rem 0.8rem;
        background-color: var(--primary-light);
        border-radius: 6px;
        font-size: 0.9rem;
    }
    
    .nav-links span {
        background-color: transparent;
        display: none; /* Hide the separator pip on mobile */
    }

    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .container {
        margin: 1.5rem auto;
        padding: 0 1rem;
    }

    .card {
        padding: 1.5rem;
    }
}