* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --black: #000000;
    --dark-gray: #1d1d1f;
    --gray: #86868b;
    --light-gray: #f5f5f7;
    --white: #ffffff;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--white);
    color: var(--dark-gray);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(20px);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

nav {
    display: flex;
    gap: 20px;
    align-items: center;
}

nav a {
    color: var(--light-gray);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
    padding: 8px 15px;
    border-radius: 20px;
}

nav a:hover {
    color: var(--white);
    background-color: rgba(255,255,255,0.1);
}

nav a.active {
    color: var(--white);
    background-color: rgba(255,255,255,0.15);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background-color: var(--black);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--dark-gray);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.btn-secondary {
    background-color: var(--light-gray);
    color: var(--black);
}

.btn-secondary:hover {
    background-color: var(--gray);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-danger {
    background-color: #ff3b30;
    color: var(--white);
}

.btn-danger:hover {
    background-color: #d62f24;
    transform: translateY(-2px);
}

.btn-small {
    padding: 8px 20px;
    font-size: 0.85rem;
}

/* Forms */
.auth-box {
    max-width: 450px;
    margin: 80px auto;
    padding: 50px;
    background-color: var(--white);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.1);
    animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-box h1 {
    font-size: 2rem;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 600;
    letter-spacing: -1px;
}

.form-group {
    margin-bottom: 25px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--dark-gray);
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="file"],
select,
textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--light-gray);
    border-radius: 12px;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--light-gray);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--black);
    background-color: var(--white);
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Games Grid */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.game-card {
    background-color: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.game-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.game-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.game-card-content {
    padding: 20px;
}

.game-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.vote-count {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray);
    font-size: 0.9rem;
}

.vote-btn {
    width: 100%;
    margin-top: 15px;
}

.voted {
    background-color: var(--black);
    color: var(--white);
}

/* Teams */
.teams-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.team-card {
    background-color: var(--light-gray);
    padding: 25px;
    border-radius: 20px;
    transition: var(--transition);
}

.team-card:hover {
    background-color: var(--dark-gray);
    color: var(--white);
    transform: translateY(-5px);
}

.team-name {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.team-points {
    font-size: 2rem;
    font-weight: 700;
    margin: 15px 0;
}

.team-players {
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 15px;
}

.team-card:hover .team-players {
    color: var(--light-gray);
}

/* Table */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
    background-color: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

thead {
    background-color: var(--dark-gray);
    color: var(--white);
}

th, td {
    padding: 20px;
    text-align: left;
}

tbody tr {
    border-bottom: 1px solid var(--light-gray);
    transition: var(--transition);
}

tbody tr:hover {
    background-color: var(--light-gray);
}

tbody tr:last-child {
    border-bottom: none;
}

/* Admin Actions */
.admin-actions {
    display: flex;
    gap: 10px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    z-index: 2000;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    position: relative;
    background-color: var(--white);
    margin: 50px auto;
    padding: 40px;
    max-width: 600px;
    border-radius: 20px;
    animation: slideDown 0.3s ease;
}

.close {
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 30px;
    cursor: pointer;
    color: var(--gray);
}

.close:hover {
    color: var(--black);
}

/* Section Title */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 40px 0 20px 0;
    letter-spacing: -1.5px;
}

.section-subtitle {
    color: var(--gray);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

/* Vote Limit Info */
.vote-info {
    background-color: var(--light-gray);
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 30px;
    text-align: center;
}

.vote-info strong {
    font-size: 1.2rem;
    color: var(--black);
}

/* Responsive */
@media (max-width: 768px) {
    .games-grid,
    .teams-grid {
        grid-template-columns: 1fr;
    }
    
    .auth-box {
        margin: 40px auto;
        padding: 30px;
    }
    
    header .container {
        flex-direction: column;
        gap: 15px;
    }
    
    nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    table {
        font-size: 0.85rem;
    }
    
    th, td {
        padding: 10px;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--light-gray);
    border-radius: 50%;
    border-top-color: var(--black);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Image Preview */
.image-preview {
    max-width: 200px;
    margin-top: 10px;
    border-radius: 10px;
}

/* Footer */
footer {
    background-color: var(--dark-gray);
    color: var(--light-gray);
    text-align: center;
    padding: 30px 20px;
    margin-top: 80px;
}

/* ========================================
   PROFIL UTILISATEUR
======================================== */

.profile-container {
    max-width: 600px;
    margin: 3rem auto;
    background: var(--white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.1);
    text-align: center;
    animation: fadeIn 0.6s ease;
}

.profile-header {
    margin-bottom: 2rem;
}

.profile-header h1 {
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.profile-subtitle {
    color: var(--gray);
    font-size: 0.95rem;
}

.avatar-section {
    margin: 2.5rem 0;
}

.avatar-preview {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--light-gray);
    margin: 0 auto 1.5rem;
    display: block;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: var(--transition);
}

.avatar-preview:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.username-display {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-gray);
    margin-top: 1rem;
}

.upload-form {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 15px;
    margin-top: 2rem;
}

.file-input-wrapper {
    position: relative;
    margin-bottom: 1.5rem;
}

.file-input-label {
    display: inline-block;
    padding: 12px 30px;
    background: var(--black);
    color: var(--white);
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

.file-input-label:hover {
    background: var(--dark-gray);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.file-name {
    margin: 1rem 0;
    color: var(--gray);
    font-size: 0.9rem;
    min-height: 20px;
}

.btn-upload {
    width: 100%;
    padding: 15px;
    background: var(--black);
    color: var(--white);
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-upload:hover {
    background: var(--dark-gray);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.btn-upload:active {
    transform: translateY(0);
}

.message {
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    animation: slideDown 0.3s ease;
    font-weight: 500;
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 2px solid #c3e6cb;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 2px solid #f5c6cb;
}

.back-link {
    display: inline-block;
    margin-top: 2rem;
    color: var(--gray);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
    padding: 8px 15px;
    border-radius: 20px;
}

.back-link:hover {
    color: var(--black);
    background: var(--light-gray);
}

/* Avatar dans le header */
.user-info {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 5px 12px;
    border-radius: 25px;
    transition: var(--transition);
}

.user-info:hover {
    background-color: rgba(255,255,255,0.1);
}

.user-avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--light-gray);
    transition: var(--transition);
}

.user-info:hover .user-avatar {
    border-color: var(--white);
    transform: scale(1.1);
}

/* Responsive Profil */
@media (max-width: 768px) {
    .profile-container {
        margin: 2rem auto;
        padding: 2rem 1.5rem;
    }

    .profile-header h1 {
        font-size: 1.5rem;
    }

    .avatar-preview {
        width: 120px;
        height: 120px;
    }

    .username-display {
        font-size: 1.2rem;
    }

    .upload-form {
        padding: 1.5rem;
    }
}

/* Animation pour le changement d'avatar */
@keyframes avatarChange {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.avatar-preview.updated {
    animation: avatarChange 0.5s ease;
}

/* Info formats acceptés */
.file-info {
    font-size: 0.85rem;
    color: var(--gray);
    margin-top: 0.5rem;
}

/* === PROFILS CLIQUABLES === */
.team-players a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
}

.team-players a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease;
}

.team-players a:hover {
    color: #764ba2;
}

.team-players a:hover::after {
    width: 100%;
}

/* === PAGE DE PROFIL PUBLIC === */
.profile-header {
    position: relative;
    overflow: hidden;
}

.profile-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(255,255,255,0.05) 10px,
        rgba(255,255,255,0.05) 20px
    );
    animation: shimmer 20s linear infinite;
}

@keyframes shimmer {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50%, 50%); }
}

/* ================================
   LISTE DES PARTICIPANTS
================================ */

.participants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.participant-card {
    background-color: var(--white);
    border: 1px solid var(--light-gray);
    border-radius: 18px;
    padding: 30px;
    text-align: center;
    text-decoration: none;
    color: var(--dark-gray);
    transition: var(--transition);
    display: block;
}

.participant-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border-color: var(--black);
}

.participant-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    position: relative;
}

.participant-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--light-gray);
}

.you-badge {
    position: absolute;
    top: 0;
    right: 0;
    background-color: var(--black);
    color: var(--white);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
}

.participant-name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.participant-team {
    background-color: var(--light-gray);
    padding: 8px 16px;
    border-radius: 20px;
    display: inline-block;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.participant-team-name {
    font-weight: 600;
    color: var(--black);
}

.participant-team-points {
    color: var(--gray);
    margin-left: 5px;
}

.participant-votes {
    color: var(--gray);
    font-size: 0.85rem;
    margin-top: 8px;
}

.participant-votes strong {
    color: var(--black);
}

/* ================================
   STATISTIQUES
================================ */

.participants-stats {
    background-color: var(--dark-gray);
    color: var(--white);
    border-radius: 18px;
    padding: 50px;
    margin-top: 60px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 40px;
}

.stat-box {
    text-align: center;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -2px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--light-gray);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 500;
}

/* ================================
   RESPONSIVE
================================ */

@media (max-width: 768px) {
    .participants-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 15px;
    }

    .participant-card {
        padding: 25px;
    }

    .participant-avatar {
        width: 100px;
        height: 100px;
    }

    .participants-stats {
        padding: 40px 25px;
        gap: 30px;
    }

    .stat-number {
        font-size: 2.8rem;
    }
}

@media (max-width: 480px) {
    .participants-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .participant-card {
        padding: 20px;
    }

    .participant-avatar {
        width: 80px;
        height: 80px;
    }

    .participant-name {
        font-size: 1rem;
    }

    .participants-stats {
        grid-template-columns: 1fr;
        padding: 30px 20px;
        gap: 25px;
    }
}