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

:root {
    --cerulean: #0081a7;
    --tropical-teal: #00afb9;
    --light-yellow: #fdfcdc;
    --soft-apricot: #fed9b7;
    --vibrant-coral: #f07167;
}

body {
    font-family: 'Kanit', sans-serif;
    background-color: #f3f4f6;
}

.font-sarabun {
    font-family: 'Sarabun', sans-serif;
}

/* Glassmorphism */
.glass-panel {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

/* Gradient Button & Headers */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--cerulean) 0%, var(--tropical-teal) 100%);
}

.text-gradient-primary {
    background: linear-gradient(135deg, var(--cerulean) 0%, var(--tropical-teal) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Curved Header */
.curved-header {
    border-bottom-left-radius: 30px;
    border-bottom-right-radius: 30px;
}

/* SweetAlert Custom Font */
.swal2-popup {
    font-family: 'Kanit', sans-serif !important;
}

/* Mobile optimizations */
@media (max-width: 640px) {
    .table-responsive {
        display: block;
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* =========================================
   🚀 MODERN FORM SYSTEM (Global Override)
   ========================================= */

:root {
    --primary-color: #0081a7;
    --secondary-color: #00afb9;
    --accent-color: #f07167;
    --text-color: #374151;
    --bg-input: #f9fafb;
    --bg-input-focus: #ffffff;
    --border-radius: 12px;
    --transition-speed: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 1. Form Group Container (Wrapper) */
.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

/* 2. The Input Field (Magic Happens Here) */
.modern-input {
    width: 100%;
    padding: 1rem 1rem 1rem 2.8rem;
    /* เว้นที่ซ้ายให้ไอคอน */
    font-family: 'Kanit', sans-serif;
    font-size: 0.95rem;
    color: var(--text-color);
    background-color: var(--bg-input);
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02);
    transition: var(--transition-speed);
    outline: none;
}

/* Hover Effect */
.modern-input:hover {
    background-color: #f3f4f6;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

/* Focus Effect (Glow & Border) */
.modern-input:focus {
    background-color: var(--bg-input-focus);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 129, 167, 0.15);
    transform: translateY(-2px);
}

/* 3. Floating Label (ข้อความลอย) */
.modern-label {
    position: absolute;
    left: 2.8rem;
    top: 1rem;
    color: #9ca3af;
    font-size: 0.95rem;
    font-weight: 400;
    pointer-events: none;
    transition: var(--transition-speed);
    background-color: transparent;
    padding: 0 4px;
}

/* Logic: เมื่อ Input ถูก Focus หรือ มีข้อความอยู่ (not placeholder shown) */
.modern-input:focus~.modern-label,
.modern-input:not(:placeholder-shown)~.modern-label {
    top: -0.6rem;
    left: 0.8rem;
    font-size: 0.75rem;
    color: var(--primary-color);
    font-weight: 600;
    background-color: white;
    /* ตัดเส้นขอบทับ */
    border-radius: 4px;
}

/* 4. Input Icons (ไอคอนด้านหน้า) */
.input-icon {
    position: absolute;
    left: 1rem;
    top: 1.1rem;
    color: #9ca3af;
    font-size: 1.1rem;
    transition: var(--transition-speed);
    z-index: 1;
}

.modern-input:focus~.input-icon {
    color: var(--primary-color);
    transform: scale(1.1);
}

/* 5. Custom Select Box (ลูกศรสวยๆ) */
select.modern-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%230081a7'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.2rem;
    padding-right: 2.5rem;
    cursor: pointer;
}

/* 6. Textarea Special Styling */
textarea.modern-input {
    padding-top: 1rem;
    min-height: 100px;
    resize: vertical;
}

textarea.modern-input:focus~.modern-label,
textarea.modern-input:not(:placeholder-shown)~.modern-label {
    top: -0.6rem;
}

/* 7. File Upload Zone (Lava Lamp Border) */
.upload-zone {
    border: 2px dashed #d1d5db;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-speed);
    background: #f9fafb;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary-color);
    background: #eff6ff;
    transform: scale(1.01);
}

/* 8. Submit Button (Gradient & Shine) */
.btn-modern {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(0, 129, 167, 0.3);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
    z-index: -1;
}

.btn-modern:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 129, 167, 0.4);
}

.btn-modern:hover::before {
    left: 100%;
}

/* 9. Mobile Responsive Fixes */
@media (max-width: 640px) {
    .modern-input {
        font-size: 16px;
        /* ป้องกัน iOS Zoom */
    }
}