/* --- 1. Base & Variables --- */
:root {
    --primary: #6366f1;
    --secondary: #a855f7;
    --success: #10b981;
    --warning: #fbbf24;
    --dark-bg: #0f172a;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.15);
    --font-kanit: 'Kanit', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font-kanit);
}

body {
    background-color: var(--dark-bg);
    color: #ffffff;
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --- 2. Animated Background & Particles --- */
.background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background:
        radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.15) 0%, transparent 45%),
        radial-gradient(circle at 85% 85%, rgba(168, 85, 247, 0.15) 0%, transparent 45%);
    animation: bgPulse 15s ease-in-out infinite alternate;
}

@keyframes bgPulse {
    0% {
        transform: scale(1);
    }

    100% {
        transform: scale(1.1);
    }
}

.particles-container {
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

.particle {
    position: absolute;
    background: white;
    border-radius: 50%;
    opacity: 0.2;
    filter: blur(8px);
    animation: floatParticle 15s infinite linear;
}

/* สุ่มขนาดและตำแหน่งละออง */
.particle:nth-child(1) {
    width: 40px;
    height: 40px;
    left: 10%;
    animation-duration: 18s;
}

.particle:nth-child(2) {
    width: 70px;
    height: 70px;
    left: 80%;
    top: 20%;
    animation-duration: 25s;
}

.particle:nth-child(3) {
    width: 25px;
    height: 25px;
    left: 45%;
    top: 60%;
    animation-duration: 20s;
}

.particle:nth-child(4) {
    width: 90px;
    height: 90px;
    left: 70%;
    top: 85%;
    animation-duration: 35s;
}

.particle:nth-child(5) {
    width: 35px;
    height: 35px;
    left: 25%;
    top: 40%;
    animation-duration: 22s;
}

@keyframes floatParticle {
    0% {
        transform: translateY(110vh) rotate(0deg);
        opacity: 0;
    }

    20% {
        opacity: 0.3;
    }

    100% {
        transform: translateY(-10vh) rotate(360deg);
        opacity: 0;
    }
}

/* ปรับตัวคุมด้านนอกสุดให้เต็มจอ */
.container.main-wrapper {
    max-width: 100% !important;
    width: 100%;
    padding: 10px;
    /* เว้นระยะจากขอบจอโทรศัพท์นิดเดียวพอ */
}

/* ปรับตัวการ์ดให้ขยายกว้างขึ้น */
.glass-card {
    background: var(--glass);
    backdrop-filter: blur(25px) saturate(160%);
    -webkit-backdrop-filter: blur(25px) saturate(160%);
    border: 1px solid var(--glass-border);
    border-radius: 40px;
    padding: 3rem 2rem;

    /* แก้ไขตรงนี้: */
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    /* เพิ่มความกว้างสูงสุดเป็น 1200px (ขนาดหน้าจอคอมทั่วไป) */
    margin: 0 auto;
    /* จัดให้อยู่กลางจอ */

    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
}

/* ถ้าเป็นมือถือ ให้กว้างเกือบเต็มขอบจอที่สุด */
@media (max-width: 576px) {
    .container.main-wrapper {
        padding: 5px;
        /* ลดระยะขอบในมือถือลงอีก */
    }

    .glass-card {
        padding: 2rem 1rem;
        border-radius: 25px;
        /* ลดความโค้งนิดนึงเพื่อให้เข้ากับขอบจอ */
        width: 93%;
        /* ให้เหลือขอบข้างละ 2% พอ */
    }
}

.glass-card:hover {
    box-shadow: 0 30px 60px -12px rgba(99, 102, 241, 0.2);
}

/* --- 4. Login Elements --- */
.icon-circle {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 38px;
    color: white;
    box-shadow: 0 15px 35px rgba(99, 102, 241, 0.4);
    animation: float 5s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-12px);
    }
}

.form-floating>.form-control {
    background: rgba(255, 255, 255, 0.08) !important;
    border: 1px solid rgba(255, 255, 255, 0.15) !important;
    color: white !important;
    border-radius: 20px;
    height: 65px;
}

.form-floating>label {
    color: rgba(255, 255, 255, 0.5);
    padding-left: 1.25rem;
}

/* --- 5. Profile & Junior Card --- */
.profile-img {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    border: 4px solid var(--primary);
    padding: 5px;
    background: var(--dark-bg);
    object-fit: cover;
}

.junior-card {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.2));
    border: 2px solid var(--success) !important;
    border-radius: 30px;
    animation: juniorPulse 2s infinite ease-in-out;
}

@keyframes juniorPulse {

    0%,
    100% {
        box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
    }

    50% {
        box-shadow: 0 0 25px rgba(16, 185, 129, 0.4);
    }
}

.info-card {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* --- 6. Buttons & Interactive --- */
.btn-primary {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border: none;
    border-radius: 20px;
    font-weight: 600;
    height: 60px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn-primary:hover {
    transform: scale(1.03) translateY(-3px);
    box-shadow: 0 15px 30px rgba(99, 102, 241, 0.4);
}

.btn-warning {
    background: var(--warning);
    color: #000;
    border-radius: 18px;
    border: none;
}

.btn-glass-light {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 18px;
}

/* --- 7. Animations & Utilities --- */
.fade-in {
    animation: fadeInUp 0.8s ease-out forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.text-gradient-primary {
    background: linear-gradient(to right, #818cf8, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.social-icon {
    transition: all 0.3s ease;
}

.social-icon.text-primary {
    color: #1877f2 !important;
    opacity: 1 !important;
    filter: drop-shadow(0 0 8px rgba(24, 119, 242, 0.5));
}

.social-icon.text-danger {
    color: #e4405f !important;
    opacity: 1 !important;
    filter: drop-shadow(0 0 8px rgba(228, 64, 95, 0.5));
}

/* --- 8. Responsive Adjustments --- */
@media (max-width: 576px) {
    .glass-card {
        padding: 2.5rem 1.5rem;
        border-radius: 30px;
        margin: 15px;
    }

    h2 {
        font-size: 1.75rem;
    }

    .icon-circle {
        width: 75px;
        height: 75px;
        font-size: 30px;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 10px;
}

/* Card แสดงชื่อน้องรหัส */
.junior-reveal-card {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1), rgba(255, 255, 255, 0.05));
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.reveal-title {
    color: #ffd700;
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: 1px;
}

.junior-display-box {
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 20px;
}

.junior-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 5px;
}

.junior-full-name {
    font-size: 1.6rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
}

.junior-id-badge {
    display: inline-block;
    padding: 5px 15px;
    background: rgba(255, 215, 0, 0.15);
    color: #ffd700;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
}

.pulse-icon-gold {
    color: #ffd700;
    animation: pulse-gold 2s infinite;
}

@keyframes pulse-gold {
    0% {
        transform: scale(1);
        filter: drop-shadow(0 0 0px #ffd700);
    }

    50% {
        transform: scale(1.1);
        filter: drop-shadow(0 0 10px #ffd700);
    }

    100% {
        transform: scale(1);
        filter: drop-shadow(0 0 0px #ffd700);
    }
}

#junior-contact-box .btn {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    transition: all 0.3s ease;
}

#junior-contact-box .btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    color: #fff;
}

#junior-contact-box .btn-outline-primary:hover {
    border-color: #0d6efd;
}

#junior-contact-box .btn-outline-danger:hover {
    border-color: #dc3545;
}

/* ตกแต่งส่วนจัดการรูปภาพในหน้าแก้ไข */
.edit-profile-wrapper {
    width: 150px;
    height: 150px;
    margin-bottom: 10px;
}

.edit-profile-wrapper .profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid rgba(255, 255, 255, 0.2);
}

.btn-edit-photo {
    position: absolute;
    bottom: 5px;
    right: 5px;
    width: 40px;
    height: 40px;
    background: var(--bs-warning);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #000;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.btn-edit-photo:hover {
    transform: scale(1.1);
    background: #ffc107;
}

/* ตัว Container ของรูป */
.icon-circle {
    width: 200px;
    /* ปรับขนาดความกว้างตามความเหมาะสม */
    height: auto;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    /* เอาพื้นหลังออก */
    border: none;
    /* เอากรอบออก */
    box-shadow: none;
    /* เอาเงาของกรอบออก */
}

/* ตัวรูปภาพโลโก้ */
.login-logo {
    width: 100%;
    /* ให้ขนาดตาม Container */
    height: auto;
    object-fit: contain;

    /* เพิ่มแสงฟุ้ง (Glow) ให้ตัวรูปภาพโดยตรงแทน */
    filter: drop-shadow(0 0 15px rgba(99, 102, 241, 0.6));

    /* เพิ่มลูกเล่นขยับเบาๆ (Optional) */
    animation: simpleFloat 3s ease-in-out infinite;
}

/* Animation ลอยขึ้นลงแบบนุ่มนวล */
@keyframes simpleFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}