:root {
    --primary: #1abc9c;
    --primary-hover: #16a085;
    --bg: #f0f3f4;
    --white: #ffffff;
    --text: #2c3e50;
    --gray: #95a5a6;
    --danger: #e74c3c;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Segoe UI', sans-serif; }

body { background-color: var(--bg); color: var(--text); min-height: 100vh; display: flex; flex-direction: column; }

/* Layout Auth */
.auth-container { display: flex; justify-content: center; align-items: center; min-height: 100vh; padding: 20px; }
.auth-box { background: var(--white); padding: 40px; border-radius: 12px; box-shadow: 0 4px 15px rgba(0,0,0,0.1); width: 100%; max-width: 500px; border-top: 5px solid var(--primary); }

.logo { text-align: center; color: var(--primary); font-size: 2rem; margin-bottom: 20px; font-weight: bold; }
.logo span { color: var(--text); }

/* Forms */
.form-group { margin-bottom: 15px; }
.form-group label { display: block; margin-bottom: 5px; color: var(--text); font-weight: 600; font-size: 0.9rem; }
.form-row { display: flex; gap: 15px; }
.form-row .form-group { flex: 1; }

input, button { width: 100%; padding: 12px; border-radius: 6px; border: 1px solid #ddd; outline: none; }
input:focus { border-color: var(--primary); }

button.btn-primary { background: var(--primary); color: white; border: none; font-weight: bold; cursor: pointer; transition: 0.3s; margin-top: 10px; }
button.btn-primary:hover { background: var(--primary-hover); }

.link-text { text-align: center; margin-top: 15px; font-size: 0.9rem; }
.link-text a { color: var(--primary); text-decoration: none; }

/* Dashboard */
.dash-nav { background: var(--white); padding: 15px 40px; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 2px 5px rgba(0,0,0,0.05); }
.user-info { display: flex; align-items: center; gap: 10px; }
.avatar { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; border: 2px solid var(--primary); }

.dash-content { flex: 1; padding: 40px; max-width: 1000px; margin: 0 auto; width: 100%; }
.card { background: var(--white); border-radius: 10px; padding: 30px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); text-align: center; }

.upload-area { border: 2px dashed #bdc3c7; padding: 40px; border-radius: 8px; margin: 20px 0; cursor: pointer; transition: 0.3s; }
.upload-area:hover { border-color: var(--primary); background: #feffff; }
.file-icon { font-size: 40px; color: var(--primary); margin-bottom: 10px; }

.alert { padding: 10px; background: #ffeaea; color: var(--danger); border-radius: 5px; margin-bottom: 15px; text-align: center; }