/* assets/css/style.css */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@500;600;700&display=swap');

:root {
    --primary-blue: #0D47A1;
    --secondary-blue: #1976D2;
    --light-blue: #E3F2FD;
    --white: #ffffff;
    --light-grey: #F8FAFC;
    --grey: #E2E8F0;
    --dark-grey: #475569;
    --text-color: #1E293B;
    --danger: #EF4444;
    --success: #10B981;
    --warning: #F59E0B;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
}

/* Dark Mode Variables (added dynamically via JS) */
[data-theme="dark"] {
    --primary-blue: #60A5FA;
    --secondary-blue: #3B82F6;
    --light-blue: #1E3A8A;
    --white: #1E293B;
    --light-grey: #0F172A;
    --grey: #334155;
    --dark-grey: #94A3B8;
    --text-color: #F8FAFC;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { 
    font-family: 'Inter', sans-serif; 
    background-color: var(--light-grey); 
    color: var(--text-color); 
    line-height: 1.6; 
    transition: background-color var(--transition), color var(--transition);
}
h1, h2, h3, h4, h5, h6 { font-family: 'Poppins', sans-serif; }
a { text-decoration: none; color: var(--secondary-blue); transition: var(--transition); }
a:hover { color: var(--primary-blue); }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.wrap { flex-wrap: wrap; }
.center { text-align: center; }
.text-blue { color: var(--primary-blue); }
.text-grey { color: var(--dark-grey); }

/* Header & Nav */
.main-header { background-color: var(--white); box-shadow: var(--shadow); position: sticky; top: 0; z-index: 100; transition: background-color var(--transition); }
.top-bar { background-color: var(--primary-blue); color: #fff; font-size: 0.85rem; padding: 8px 0; }
.disclaimer-text { font-style: italic; opacity: 0.9; }
.navbar { padding: 15px 20px; }
.logo h1 { font-size: 1.8rem; font-weight: 700; color: var(--primary-blue); display: flex; align-items: center; gap: 8px; }
.nav-links { display: flex; gap: 25px; align-items: center; }
.nav-links a { font-weight: 500; padding: 5px 0; position: relative; color: var(--dark-grey); }
.nav-links a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--secondary-blue); transition: var(--transition); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--primary-blue); font-weight: 600; }

/* Buttons */
.btn { 
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 24px; font-weight: 600; border-radius: 8px; cursor: pointer; 
    transition: var(--transition); border: none; text-align: center; font-size: 1rem; 
    font-family: 'Inter', sans-serif;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background-color: var(--primary-blue); color: #fff; box-shadow: 0 4px 14px rgba(13, 71, 161, 0.3); }
.btn-primary:hover { background-color: var(--secondary-blue); color: #fff; box-shadow: 0 6px 20px rgba(25, 118, 210, 0.4); transform: translateY(-2px); }
.btn-outline { background-color: transparent; border: 2px solid var(--primary-blue); color: var(--primary-blue); }
.btn-outline:hover { background-color: var(--light-blue); color: var(--primary-blue); }
.btn-success { background-color: var(--success); color: #fff; }
.btn-success:hover { background-color: #059669; color:#fff; box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3); transform: translateY(-2px); }
.btn-danger { background-color: var(--danger); color: #fff; text-decoration: none;}

/* Floating Label Inputs */
.form-group { position: relative; margin-bottom: 25px; }
.form-control { 
    width: 100%; padding: 16px 15px 8px; border: 1.5px solid var(--grey); 
    border-radius: 8px; font-family: inherit; transition: var(--transition); 
    font-size: 1rem; background: var(--white); color: var(--text-color);
}
.form-control:focus { outline: none; border-color: var(--secondary-blue); box-shadow: 0 0 0 4px rgba(25, 118, 210, 0.1); }
.form-label {
    position: absolute; left: 15px; top: 14px; color: var(--dark-grey); font-size: 1rem;
    pointer-events: none; transition: var(--transition); background: var(--white); padding: 0 4px;
}
.form-control:focus ~ .form-label,
.form-control:not(:placeholder-shown) ~ .form-label {
    top: -10px; left: 10px; font-size: 0.8rem; color: var(--secondary-blue); font-weight: 600;
}
.error-msg { color: var(--danger); font-size: 0.85rem; margin-top: 5px; display: none; font-weight: 500;}

/* Cards */
.card { 
    background: var(--white); border-radius: var(--border-radius); padding: 35px; 
    box-shadow: var(--shadow); margin-bottom: 30px; border: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition);
}
.card:hover { box-shadow: var(--shadow-hover); }

/* Drag and Drop Uploads */
.upload-zone {
    border: 2px dashed var(--secondary-blue); border-radius: 12px; padding: 40px 20px;
    text-align: center; background: var(--light-blue); cursor: pointer; transition: var(--transition);
    position: relative; overflow: hidden;
}
.upload-zone:hover { background: #d0e8fc; border-color: var(--primary-blue); }
.upload-zone input[type="file"] { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
.upload-icon { font-size: 2.5rem; color: var(--secondary-blue); margin-bottom: 10px; }
.upload-text { font-weight: 600; color: var(--primary-blue); }
.upload-subtext { font-size: 0.85rem; color: var(--dark-grey); margin-top: 5px; }

/* Progress Bar */
.progress-container { margin: 20px 0 40px; }
.progress-bar-bg { background: var(--grey); height: 10px; border-radius: 5px; overflow: hidden; position: relative;}
.progress-bar-fill { height: 100%; background: linear-gradient(90deg, var(--secondary-blue), var(--primary-blue)); width: 20%; transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1); }
.step-indicators { display: flex; justify-content: space-between; margin-top: 15px; font-size: 0.9rem; font-weight: 600; color: var(--dark-grey); position: relative; }
.step-indicator { flex: 1; text-align: center; transition: var(--transition); position: relative; }
.step-indicator.active { color: var(--primary-blue); font-weight: 700; }
.step-indicator.completed { color: var(--success); }

/* Multi-step logic */
.step-container { display: none; opacity: 0; transform: translateX(20px); transition: all 0.4s ease; }
.step-container.active { display: block; opacity: 1; transform: translateX(0); }

/* Checkbox */
.checkbox-label { display: inline-flex; align-items: flex-start; cursor: pointer; gap: 10px; font-weight: 500;}
.checkbox-label input { width: 20px; height: 20px; cursor: pointer; margin-top: 2px;}

/* Main Content & Title */
.main-content { min-height: calc(100vh - 200px); padding: 50px 0; }
.page-title { margin-bottom: 40px; color: var(--primary-blue); text-align: center; font-size: 2.5rem; font-weight: 700; letter-spacing: -0.5px;}

/* Footer */
.main-footer { background-color: var(--primary-blue); color: #fff; padding: 60px 0 0 0; }
.footer-col { flex: 1; min-width: 250px; margin-bottom: 30px; padding-right: 20px; }
.footer-col h3 { margin-bottom: 20px; font-size: 1.3rem; border-bottom: 2px solid rgba(255,255,255,0.2); display: inline-block; padding-bottom: 8px;}
.footer-col a { color: var(--light-blue); }
.footer-col a:hover { color: #fff; text-decoration: underline; }
.footer-bottom { background: #082d66; padding: 20px 0; margin-top: 30px; font-size: 0.9rem; text-align: center;}

/* Badges */
.badge { padding: 6px 12px; border-radius: 20px; font-size: 0.85rem; font-weight: 600; display: inline-block; }
.badge-Pending { background: #FEF3C7; color: #D97706; }
.badge-Approved { background: #D1FAE5; color: #059669; }
.badge-Rejected { background: #FEE2E2; color: #DC2626; }

/* Tables */
.table-responsive { overflow-x: auto; width: 100%; border-radius: 8px; box-shadow: inset 0 0 0 1px var(--grey);}
table { width: 100%; border-collapse: collapse; margin-bottom: 0; background: var(--white); }
th, td { padding: 16px; text-align: left; border-bottom: 1px solid var(--grey); }
th { background-color: var(--light-grey); font-weight: 600; color: var(--dark-grey); text-transform: uppercase; font-size: 0.85rem; letter-spacing: 0.5px;}
tr:last-child td { border-bottom: none; }
tr:hover td { background-color: rgba(0,0,0,0.02); }

/* Toast Notifications */
.toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast { background: var(--white); border-left: 5px solid var(--primary-blue); padding: 15px 20px; border-radius: 8px; box-shadow: 0 10px 30px rgba(0,0,0,0.15); display: flex; align-items: center; gap: 15px; min-width: 300px; transform: translateX(120%); transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); }
.toast.show { transform: translateX(0); }
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }
.toast-icon { font-size: 1.5rem; }

/* Hero Section (Home) */
.hero-section { 
    padding: 100px 20px; text-align: center; 
    background: linear-gradient(135deg, #0D47A1 0%, #1976D2 100%); 
    color: white; border-radius: 20px; margin-bottom: 60px; 
    box-shadow: 0 20px 40px rgba(13, 71, 161, 0.2);
    position: relative; overflow: hidden;
}
.hero-section::before {
    content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
}
.hero-section h2 { font-size: 3.5rem; margin-bottom: 20px; font-weight: 800; letter-spacing: -1px; position: relative; z-index: 2;}
.hero-section p { font-size: 1.3rem; opacity: 0.9; margin-bottom: 40px; max-width: 700px; margin-left: auto; margin-right: auto; position: relative; z-index: 2;}
.hero-buttons { display: flex; justify-content: center; gap: 20px; position: relative; z-index: 2; flex-wrap: wrap;}
.btn-white { background: #fff; color: var(--primary-blue); }
.btn-white:hover { background: var(--light-blue); color: var(--primary-blue); transform: translateY(-2px); box-shadow: 0 10px 20px rgba(0,0,0,0.1); }

/* Features Section */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; margin-bottom: 60px; }
.feature-card { text-align: center; padding: 40px 20px; background: var(--white); border-radius: 16px; box-shadow: var(--shadow); transition: var(--transition); border: 1px solid var(--grey); }
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: var(--secondary-blue); }
.feature-icon { font-size: 3rem; margin-bottom: 20px; background: var(--light-blue); width: 80px; height: 80px; line-height: 80px; border-radius: 50%; margin: 0 auto 20px auto; color: var(--primary-blue); }
.feature-card h3 { margin-bottom: 15px; color: var(--text-color); }
.feature-card p { color: var(--dark-grey); font-size: 0.95rem; }

/* Utilities */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 25px; }
.mt-4 { margin-top: 25px; }
.mb-4 { margin-bottom: 25px; }
.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.gap-10 { gap: 10px; }

/* Responsive */
@media(max-width: 768px) {
    .nav-links { display: none; }
    .grid-2 { grid-template-columns: 1fr; }
    .hero-section { padding: 60px 20px; }
    .hero-section h2 { font-size: 2.2rem; }
    .step-indicators span { display: none; }
    .step-indicators { font-size: 0.8rem; }
}

/* Chat Widget */
.chat-widget { position: fixed; bottom: 30px; left: 30px; width: 60px; height: 60px; background: #25D366; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4); cursor: pointer; transition: var(--transition); z-index: 1000; color: white; font-size: 30px;}
.chat-widget:hover { transform: scale(1.1); box-shadow: 0 15px 30px rgba(37, 211, 102, 0.6); }

/* Theme Toggle */
.theme-toggle { background: transparent; border: none; font-size: 1.5rem; cursor: pointer; color: var(--dark-grey); padding: 5px; }